How large the size of a sample needs to be if we want to a 90% confidence level with a margin of error no more than 1.5%

Answers

Answer 1

Answer:

A 90 percent level can be obtained with a smaller sample, which usually translates into a less expensive survey. To obtain a 3 percent margin of error at a 90 percent level of confidence requires a sample size of about 750. For a 95 percent level of confidence, the sample size would be about 1,000.


Related Questions

according to the graph,what is the value of the RANGE when the DOMAIN is 0

Answers

Answer:

it would be nice with a photo dude

__•__=42
__+__=23


Can someone help me solve this?

Answers

Answer:

21 * 2 = 42

21 + 2 = 23

Step-by-step explanation:

well I know that 6 * 7 = 42 so I’m assuming that’s correct

Then 11 + 12 = 23 it could be the answer I’m not positive for this one though.

The first one should be correct.

Maybe try

21 * 2 = 42

21 + 2 = 23

Which answer choice has the set of numbers
ordered correctly from least to greatest?
16
13, √, 1.71, 9
3
√. 12, 16, 1.71
4

3
16
1.71, 12, 1
9
O
16.1.71,√, 12
3
9

Answers

Answer:

0

3

3

3

8

9

12,161.71√

I think his is the best order

A jar of jelly beans has a mass of 1450kg.If the jars mass is 245g.What is the mass of jelly beans​

Answers

Answer:

1449.755 kilograms

Step-by-step explanation:

245 grams is .245 kilograms meaning that in order to get the answer you would need to subtract 1450 by .245 which is 1449.755 which means that the mass of jelly beans would be 1449.755 kilograms

What is the (LCM) of 5/6 and2/5

Answers

Answer:

30

Step-by-step explanation:

[tex]\frac{5\cdot\frac{6}{6} }{2\cdot\frac{6}{6} } = \frac{25}{30}, \frac{12}{30}[/tex]

Please I need help asap

Answers

Answer:

Option D - x = 3 3/5

Step-by-step explanation:

Lets make the left side into an improper fraction :

2 2/5 = 12/5

Now let's make both fraction into equivalent ones but with the same denominator :

2/3 = 10/15

12/5 = 36/15

Now we substitute the equivalent values back into the equation :

10/15 × x = 36/15

Now we multiply both sides by 15 to remove the denominators:

10 × x = 36

Now we divide both sides by 10 and simplify :

x = 36/10

x = 18/5

x = 3 3/5

So our answer will be Option D  

Hope this helped and brainliest please

What is DE?
Enter your answer as a decimal in the box.

Answers

Ya boy a girl who has no friends with him and his wife is a good guy to be able with his baby love bye baby love you baby love bye love you baby baby love bye love you love ya love you love baby baby love love bye baby boy bye boy love love ya bye love love you love bye baby bye bye boy love love ya ya love ya baby love love you baby boy baby love ya baby bye love you baby love bye baby boy bye boy boy oh ya no no oh boy boy bye bye love you love baby love bye baby bye bye boy boy oh no no love baby boy bye bye love ya bye baby love love you baby baby boy bye love you bye baby boy boy bye love you baby boy bye love you too love love you bye bye boy bye baby love bye baby baby boy bye boy love love ya

PLEASE HELP ME PICTURE BELOW!!!

Answers

Answer:

corographicia

Step-by-step explanation:

its the right answer

Please I need HELP!!!!!!

Answers

Answer:

I just need points I don't know your answer

Step-by-step explanation:

+)
Kirsten invested $1000 in an account at an annual-
interest rate of 3%. She made no deposits or
on the account for 5 years. The
withdrawals
interest was compounded annually. Find the
balance in the account, to the nearest cent, at the
end of 5 years.

Answers

Answer:

Kristen will have $1159.27 after 5 years

Step-by-step explanation:

trust in ya boy

Answer:

$ 1159.27

Step-by-step explanation:

1000 ( 1 + .03)^5 = 1159.27

2/3 b + 5 =20 - b solve for b

Answers

Answer:

b = 9

Step-by-step explanation:

[tex]\frac{2}{3} b + 5 = 20-b\\\frac{2}{3} b+5+b=20-b+b\\\frac{5}{3} b+5=20\\\frac{5}{3} b+5-5=20-5\\\frac{5}{3}b=15\\b= 15*\frac{3}{5} \\b= 9[/tex]

Answer:

[tex]b = 9[/tex]

Step-by-step explanation:

[tex]\frac{2}{3} b + 5 = 20 - b[/tex]

In order to solve for b, we must isolate the variable. We can start by subtracting 5 from both sides.

[tex]\frac{2}{3} b + 5 - 5 = 20 - b - 5[/tex]

Simplify.

[tex]\frac{2}{3} b = 15 - b[/tex]

Add b to both sides.

[tex]\frac{2}{3} b + b = 15 - b + b[/tex]

Simplify.

[tex]\frac{2}{3} b + b = 15[/tex]

Multiply everything by 3 to remove the fractions.

[tex]3(\frac{2}{3}b+b) = 3(15)[/tex]

Simplify.

2b + 3b = 45

Simplify.

5b = 45

Divide 5 from both sides.

5b ÷ 5 = 45 ÷ 5

Simplify.

b = 9

For more information on solving variables, check out the following answers!

https://brainly.com/question/633344https://brainly.com/question/1267151https://brainly.com/question/4207498


jeanne barrons has decided to buy a new car. it has a base price of
$21,276.00, options totaling $1,219.80 and a destination charge of $590.00.
while surfing the internet, she learned that the dealer's cost is
approximately 83% of the base price and 80% of the price of the options.
what should barrons estimate as the dealer's cost? (section 9-2) *
o a. $19,224.92
b. $17,659.09
c. $17,500.25
d. $19,430.84

Answers

Answer:

  a.  $19,224.92

Step-by-step explanation:

The dealer's cost will be the sum of the dealer's costs for the base car, its options, and the destination charge.

__

  cost for base car = 0.83 × $21,276 = $17,659.08

  cost for options = 0.80 × $1,219.80 = $975.84

  cost for destination charge = $590.00

The sum of the dealer's costs is ...

  $17,659.08 +975.84 +590.00 = $19,224.92

Barrons should estimate the dealer's cost to be $19,224.92.

The graph shows the quadratic function f, and the table shows the quadratic function g.




x -5 -4 -3 -2 -1 0 1

g(x) 10 7 6 7 10 15 22

A.
The functions f and g have the same axis of symmetry and the same minimum values.
B.
The functions f and g have different axes of symmetry and different minimum values.
C.
The functions f and g have the same axis of symmetry, but the minimum value of f is greater than the minimum value of g.
D.
The functions f and g have the same axis of symmetry, but the minimum value of f is less than the minimum value of g.

Which statement is true?

Answers

Analyzing the quadratic functions, it is found that the correct option is D. The functions f and g have the same axis of symmetry, but the minimum value of f is less than the minimum value of g.

How to analyze the function?

Looking at the graph, Function f has a minimum value of 1 at x = -3. Hence, the axis of symmetry is x = -3.

Function g has a minimum value of 6 at x = -3. Hence, the axis of symmetry is also x = -3.

Therefore, the functions f and g have the same axis of symmetry, but the minimum value of f is less than the minimum value of g.

Learn more about functions on:

brainly.com/question/24737967

#SPJ1

Question Progress
10
Find the value of:
a) x² when x = 6

Answers

Answer:

x^2= 36

Step-by-step explanation:

since x = 6

therefore, x^2 = 6×6=36

What is the range of the function y=3√x+8?

Answers

Answer:

The range will be (-∞,∞)

Step-by-step explanation:

Since there is no number that can make this function undefined or limited to a certain set of values,  the range shall be infinite.

Help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeee.

Answers

Answer:

it's 8

Step-by-step explanation:

the lil hand is on the 8 and the big hand is on the 12

Answer:

The time is 8:00  but with out a question im not sure what your asking

Step-by-step explanation:

(2) If the price of an item is represented by p, a final price of 0.7p indicates a discount of what percent?​

Answers

Answer:

30%

Step-by-step explanation:

First subtract: 1 - .70 = .30

Then move decimal over to the right 2 times and add percentage sign instead of the decimal: 30%

Please Help I Don't Undertand.

Answers

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

or

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

the distance between dakshes's house and his school is 7 km.how many kilometers does he have travel in 6 days

Answers

Answer:

84km

Step-by-step explanation:

He has to travel 7 km in the morning to school and 7 km in the afternoon to home. 7km x 2 = 14km/day

He's making this trip 6 days a week: 6 days x 14km/day = 84km

7km x 2/day x 6 days = 84km

what is the equation of a circle with center (2,4) and radius 7

Answers

Answer:

try texting new food

Step-by-step explanation:

I do not know

Factor the algebraic expression.
18a+15

Answers

Answer:   3(6a+5)

We can confirm this by distributing the 3 back in

3*6a = 18a

3*5 = 15

So 3(6a+5) = 3*6a+3*5 = 18a+15

The process of factoring polynomials like this is basically using the distributive property in reverse.

Answer:

3(6a + 5)

Step-by-step explanation:

1)  Find the Greatest Common Factor (GCF).

1 - What is the largest number that divides evenly into 18a and 15?

It is 3.

2 - What is the highest degree of a that divides evenly into 18a and 15.

It is 1, since a s not in every term.

3 - Multiplying the results above,

The GCF is 3.

2) Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

3 (18a/3 + 15/3)

3)  Simplify each term in parentheses.

3(6a + 5)

Can you help me with this? it would help!​

Answers

angle b = angle 4a (vertically opposite angles)



simplify the numerical expression- cant write it out so i'm using a pic

Answers

Answer:

-38

Step-by-step explanation:

4-(3^4-6^2)+2(3)÷2

=>     4 - (81-36) + 2(3) ÷ 2      

=>     4 -  45 + 2(3)÷2

=>     4 -  45 + 6÷2

=>     4 -   45 + 3

=>     -41 + 3

=>     - 38

hope this helps :)

At a basketball game, 45% of people attending were supporting the home team, while 55% were supporting the visiting team. If 1413 people attending the game supported the home team, what was the total number of people attending the game?

Answers

divide the number of people supporting the home team by the percentage supporting the home team.

1413/0.45 = 3140


total people = 3,140

The total number of people attending the basketball game was 3140.

Let's denote the total number of people attending the game as "T."

According to the information given, 45% of the people were supporting the home team. Therefore, the number of people supporting the home team can be calculated as 45% of the total number of people: 0.45 * T.

We are also told that 1413 people supported the home team. So, we can write the equation:

0.45 * T = 1413

Now, let's solve for the total number of people attending the game (T):

T = 1413 / 0.45

T = 3140

Therefore, the total number of people attending the basketball game was 3140.

To know more about equation:

https://brainly.com/question/29657983

#SPJ3

Write the equation of the line that passes through (4, 2) and is parallel to the line y = 2x – 1.

Answers

Answer:

Step-by-step explanation:

We will look for a line that has the general form of y = mx + b, where m is the slope and b the y-intercept (the value of y when x = 0).

A line parallel to y=2x-1 will have the same slope, 2.

We can write y = 2x + b for the new line.  We need to find b.  We can use the given point in this equation and solve for b:

y = 2x + b

2 = 2(4) + b  for (4,2)

2 = 8 + b

x = -6

The parallel line to y=2x-1 that goes through point (4,2) is:

y = 2x-6

See the attached graph.

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to write the equation of the line that passes through (4, 2) and is parallel to y=2x-1.

[tex]\triangle~\fbox{\bf{KEY:}}[/tex]

Parallel lines have the same slope.

Since the slope of the given line is 2, the slope of the line parallel to this one is also 2.

Now, figure out the y-intercept, c:

y=2x+c

We're given a point: (4, 2).

Where: 2 is the y-coordinate of the point, and 4 is the x-coordinate.

Now, substitute 2 for y and 4 for x:

[tex]\longmapsto\sf{2=2(4)+c}[/tex]

Simplify!

[tex]\longmapsto\sf{2=8+c}[/tex]

Subtract 8 from both sides of the equal sign:

[tex]\longmapsto\sf{2-8=c}[/tex]

[tex]\longmapsto\sf{-6=c}[/tex]

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

Using graphing, what is the approximate solution of this equation? 3xˆ2-6x-4 = -2/x+3 + 1 A. x = .64
B. x = .33
C. x = .18
D. x = 2.60

Answers

Answer: c

Step-by-step explanation:

The required values on the graph, the solution is approximate x = -0.33.

What is a graph?

A graph can be defined as a pictorial representation or a diagram that represents data or values.

To solve this equation, we can begin by combining like terms on the left-hand side:

3x² - 6x - 4 - 2/x + 3 + 1 = 0

3x² - 6x - 2/x = -3

Next, we can factor out the x term:

x(3x - 2) - 2(3x - 2) = -3

(x - 2)(3x - 2) = -3

Since the equation is equal to -3, we can add 3 to both sides to get:

(x - 2)(3x - 2) + 3 = 0

We can then factor the left-hand side to get:

(x - 2)(3x - 2 + 3) = 0

(x - 2)(3x - 2 + 3) = (x - 2)(3x + 1) = 0

This equation has two solutions: x = 2 and x = -1/3.

Approximating these values on the graph, we see that the solution is approximate x = -0.33.

Learn more about the graphs here:

brainly.com/question/16608196

#SPJ2

There are 6 girls and 5 boys in a debate class. The teacher chooses two students at random to lead a class discussion. What is the probability of selecting a girl and then a boy

Answers

Answer:

Step-by-step explanation:

There are 11 students in total.

6 girls.

and 5 boys.

so the probability of selecting a girl is 1/5  because 5 boys or it could be 1/11 if i am not mistaken.

(which i might be)

The band is raising money for their spring trip. they need to raise at
least $1500. earlier in the year, they made $575 on their annual fruit sale.
now they are selling donuts, where they will earn $5 profit for each box
of donuts they sell. which inequality could be used in order to
determine the number of boxes of donuts, d, they must sell in order to
meet their goal?

Answers

The inequality that can be used  to determine the number of boxes of donuts, d, they must sell in order to meet their goal is $1500 ≥ $575 + $5d.

What is the inequality?

Here are inequality signs and what they denote:

> means greater than< means less than≥ means greater than or equal to ≤ less than or equal to

Total amount that needs to be raised ≥ amount made at the fruit sale + (profit per box x number of boxes)

$1500 ≥ $575 + $5d

To learn more about inequality, please check: https://brainly.com/question/5031619

#SPJ1


If k is an integer, which of the
following must be odd?
F. 7k-1
G. 3k + 2
H. 1-5k
J. 7+2k

Answers

Answer:

J

Step-by-step explanation:

F is wrong, Lets say K is 1, then 7-1 = 6

G is wrong, say K is 2, then 6+2 = 8

H is wrong, say K is 1, then 1 - 5 = -4

J is right, Say K is 1, then 7+2 = 9, say K is 2, then 7+4 = 11, any integer used is an odd number

-- Gage Millar, Algebra 1/2 Tutor (Pending Pre-Calc Tutor)

can i have help with this please

Answers

Answer:

B) 7r² - r -1

Step-by-step explanation:

(3r² + 7r + 1) + (4r² - 8r - 2)

1. Remove unnecessary parentheses

3r² + 7r + 1 + 4r² - 8r - 2

2. Combine like terms (ex: r and -2r, n and 4n)

7r² - r -1

Therefore, the correct answer is B.

Hope this helps!

Answer: Heyaa! ~

Your Answer is... 7r²− r −1,  Which is B.

Step-by-step explanation:

Subtract the numbers, And then combine like terms,

Solution: 7r²− r −1

Hopefully this helps you! ^

Other Questions
Which of the following sentences contains personification Someone put these three words in a paragraph please What additional piece of information is needed to show that DEF andPQR are congruent by ASA? a lateral edge of a right prism s 6cm and the perimeter of its base is 20cm find area of its lateral surface Can someone please answer this, ill give you brainliest Would be very appreciated. Essays questionIndicate what you found useful and what you disagreed with and had questions about soft skills and body language in two paragraphs each.Provide two paragraphs each of a situation you personally experienced in which you:a) found someone's communication to be particularly effective and powerful and b) found someone's communication to be particularly poor, counter-productive, and ineffective.Provide the context of the situation and what happened as a result of the communication. This could be your own communication or it could be that of someone you personally witnessed Question 2 On the line that passes through point C, mark a point D that is distinct from point C. Use the slope formula along with coordinates of points to find the slopes of and . Show your work. Which is a physical change?using electricity to break down water into hydrogen and oxygenformation of rust on a metal fenceturning on a gas burner on a stovethe evaporation of water into water vapor Name two types of evidence scientists use to support the theory of evolution.5:18 science unit test part 2100 POINTS TO WHOEVER ANSWERS!!! Select the correct text in the passage. which sentence in the passage uses parallel structure? Which of the following statements best characterizes the effects and treatment of ethnicity during the past 20 years?A.Ethnic diversity has increased as new ethnic groups have formed.B.Ethnic identification of different groups has declined as populations have become more homogeneous.C.Ethnicity has been a source of pride and identification as well as a source of conflict among groups of people.D.People have been less likely to reveal their ethnicity since the advent of the Internet, because it has little meaning in online communication.Please select the best answer from the choices provided. Solve the inequality |a + 3| > 14 Libby built a fence that was 56ft for over 4 days, she built the same length each day. how many inches of fence did libby build each day? If sin A = 4/5 find the value of cot A + tan A. Josh has a friend who avoids celebrating holidays due to his religious beliefs. Josh asked his friend to come over for a holiday party and his friend declined.Why is it important for Josh to understand the feelings and perspectives of others?Select all correct answers.If Josh wants people to respect him, he should also show respect to others.Part of maturing is to realize that different people have different opinions. Josh may win a behavior award at school if he shows respect for others.Josh may lose friends if he doesnt understand the perspectives of others. Which system of equations has a solution of (-2,-2,-2)?OAs+y=03-==-2s+y=z=-4OB. 31 - y = -8y - 3z = -82 + y + z = -8OC.1 + 2y = -6y + 2z = -6I-y-z = 2OD. 1-2y + z = 02y +9z = -20I= y + z = 0 what should be done to ready-to-eat TCS food that will be prepped on-site and held for longer than 24 housrs Why does the government support the United States Postal Service?to make money for the governmentbecause private companies arent interestedto keep postal costs low for all Americansbecause it supports satellite construction who has band lab?? and whats 4 times 49 Classify the enzyme inhibitors by giving the names, mechanisms, and effect on the kinetic parameters Km and Vmax.