Answer:
a) The margin of error = 0.11
b) The interval estimate = (0.74, 0.96)
c) Not valid because 68% = 0.68 is less than the values in the interval estimate
Step-by-step explanation:
The statistical data from the population and the simulation are;
The percentage of the people that liked the new chicken sandwich = 85% = The population proportion
The percentage the restaurant manager claims liked the new sandwich = 68%
The number of trials of the simulation = 100 trials
The sample size of each trial = 30
The point estimate of each trial = 0.85
The minimum sample proportion = 0.66
The maximum sample proportion = 0.88
a) The confidence interval = (0.66, 0.88)
By the half the range method, the margin of error is given by half the width of the confidence interval
∴ The margin of error, MOE = (0.88 - 0.66)/2 = 0.11
b) The interval estimate are the expected range of numbers for a parameters
The interval estimate = The point estimate ± MOE
∴ The interval estimate = 0.85 ± 0.11 = (0.74, 0.96)
Given that the manager's claim of 68% is not within the interval estimate, the manager's claim is not valid based on the expected values for the people that liked the new sandwich found with the point estimate and the margin of error
Number of offspring and weight, in pounds, of 23 randomly selected rabbits are compared. Which significance test should be used to see if number of offspring and weight have a linear relationship? Assume all test conditions are met. (4 points)
Answer:
t test for the slope of regression line
Step-by-step explanation:
Suppose a random sample is drawn from the bivariate normal population and the estimated regression equation is found Y^= a +bX , where, b , the sample estimate of β1 is normally distributed with mean β and standard deviation
σyx / √∑(x-x`)².
The test statistic has t distribution where
t= b-β/sb
where sb= Syx / √∑(x-x`)² with υ= n-2 degrees of freedom.
It is important to note that the testing of hypothesis that β= 0 is equivalent to testing the hypothesis that variable Y is independent of the variable X in the linear sense.
The test statistic then becomes t= b/ sb .
If we reject H0 : β= 0 we conclude that the two variables are linearly independent.
Hey guys I need help asap
please help me! multiple choice
Answer:
(3,4)and r=2 is is the center and radius of the circle.
stay safe healthy and happy.What is the volume of a sphere with a diameter of 9.1m, rounded to the nearest tenth of a cubic meter?
Answer: V≈ 394.57m³
Step-by-step explanation:
The volume of the given sphere is approximately 391.3 m³.
What is the volume of a sphere?The formula for the volume of a sphere is given by (4/3)πr³, where r is the radius of the sphere.
Given that the diameter of the sphere is 9.1 m, we can calculate the radius by dividing the diameter by 2:
Radius = Diameter / 2 = 9.1 m / 2 = 4.55 m
Now, we can substitute the radius value into the formula and calculate the volume:
Volume = (4/3) x π x (4.55 m)³
Volume = 4.18 x (4.55 m)³
Volume = 4.18 x (4.55³)
Volume = 4.18 x 93.859
Volume = 391.34482
Rounded to the nearest tenth of a cubic meter,
Volume = 391.3 m³
Therefore, the volume of the sphere is approximately 391.3 m³.
Learn more about the sphere here:
https://brainly.com/question/12390313
#SPJ2
A jewelry designer sells bead necklaces in a local farmer's market. The profit P that she makes from selling x necklaces is given by P = −x2 + 35x. What is the least number of her necklaces she must sell to make a profit of $300.00?
Answer:
15
Step-by-step explanation:
Given that the profit equation from selling x necklaces is
P = −x2 + 35x.
To make a profit of $300, the profit P = 300 then
300 = -x2 + 35x
x2 - 35x + 300 = 0
solve by factorization
x2 - 15x - 20x + 300 = 0
x(x - 15) - 20(x - 15) = 0
(x - 15)(x - 20) = 0
x - 15 = 0 or x - 20 = 0
x = 15 or 20
Since 20 is higher, the least number of her necklaces she must sell to make a profit of $300.00 is 15
2x + 5y = 10
i need the slope and y-intercept
Answer:
Slope: [tex]-\frac{2}{5}[/tex]
Y-intercept: 2
Step-by-step explanation:
We have to isolate y;
2x + 5y = 10
5y = -2x + 10
y = [tex]\frac{-2x + 10}{5}[/tex]
y = [tex]-\frac{2}{5} x + 2[/tex]
Hope this helps!
find the formula for the nth term of the arithmetic sequence a1=15,d=9
The amplitude of a periodic function is 8.5 and its minimum value is 0. What is the functions
maximum value?
Answer:
maximum value is 17.
Step-by-step explanation:
8.5=1/2(x-0)
8.5=1/2x
8.5=x/2
8.5×2=x
17=x
x=17
please help asap!!!!!
Answer:
No
Step-by-step explanation:
if both equations begin with 'y=' then we can set the expressions equal to each other:
-x+1 = -x+5
1 ≠ 5 ∴ there are no solution to this system of equations
Please can someone help me on this ASAP pls.
Answer:
Whats the question? I dont see a file or anything?
Step-by-step explanation:
A bag contains 37 coins consisting of only dimes and quarters. To
total amount of money in the bag is $6.85. Which system of
equations
can be used to determine the number of quarters, 9,
and the number of dimes, d , in the bag?
Answer:
Step-by-step explanation
x^3+216=0
im not too sure about this problem do you have an answer and explanation ?
Answer:
solution
x^3+216=0
or,x^3=216
or,x=6
What is the answer to this?-
Answer:
yes, by SAS
Step-by-step explanation:
cause the GI and JL are congruent and the same for HG and LK
$1,800 is what percent of $6,000?
Answer:
30%
Step-by-step explanation:
1,800/6,000 = 0.30 -> 30%
Answer:
30%
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
Please help with this question
Answer:
70 in²
Step-by-step explanation:
what is -10+(-3/4)?
PLEASE answer
10 points
Answer:
the first
-10 3/4
Step-by-step explanation:
;3. i sure
The segments shown below could form a triangle.
help please :)
Answer:
The answer is false! :)
what number goes into the missing space
Answer:
12
Step-by-step explanation:
mrk me brainliest plzzzzzzzzzz
Answer:
b) 12
Step-by-step explanation:
The first image shows the top 2 numbers as 5 and 2 = 5 * 2
=> 10
The Second image shows the top 2 numbers as 3 and 3 = 3 * 3
=> 9
So, the third image shows the top 2 numbers as 2 and 6 = 2 * 6
=>12
Therefore, the missing space in the third circle is b) 12
Hope it helps :)
Please help! It's Algebra.
Answer:
Square: x= +or - [tex]\sqrt{7}[/tex], Triangle: x= + or - [tex]\sqrt{23}[/tex]
Step-by-step explanation:
For the square
4[tex]x^{2}[/tex]=28
dvide by four:
[tex]x^{2}[/tex]=7
Take the square root of both sides
x= +or - [tex]\sqrt{7}[/tex]
For the Triangle
(1/2) (2x) (2x)=46
2[tex]x^{2}[/tex]=46
Divide by 2
[tex]x^{2}[/tex]=23
x= + or - [tex]\sqrt{23}[/tex]
Math question!!!!!!!!!!!!!
Answer:
the correct answer for that would be identity property
Answer:
first one
Step-by-step explanation:
hii please help i’ll give brainliest
Answer:
1. 8
2. 25
3. 3
Step-by-step explanation:
Pls hurry!!
Find the area of the triangle
Answer:
A = 6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
L= 1/2 (4+12) 1/2 (3a)
Answer:
[tex]a \ = \frac{l}{12} [/tex]
In ΔGHI, the measure of ∠I=90°, HI = 5.6 feet, and IG = 2.8 feet. Find the measure of ∠G to the nearest tenth of a degree.
Answer: I would say it would be 70
Step-by-step explanation:
How do I write a slope intercept form equation from standard form?
2 items divided EQUALLY by 5?? HELP
**ANSWER NEEDED FAST** (giving brainliest) Heres the question ;; In a Honeycomb Path puzzle, the goal is to fill every empty hexagon (⬡) with a number so that a path of consecutive numbers crosses every hexagon. Consecutive numbers come one after another. For example 11, 12, and 13 are consecutive. What numbers should fill the center row of the honeycomb below from left to right?
Answer:
19, 18, 13, 15
Step-by-step explanation:
Hard to explain it over the computer, but that is correct.
Hope that this helps!
Answer:
19, 18, 13, 15 (in order)
Step-by-step explanation:
See the attachment >_<
I've marked the order of the numbers in red, as well as the numbers you'll need to add in blue.
Good luck ^^
can u simplify 1.3 + (-6) + (-4.25) =
Answer:
-8.95
Step-by-step explanation:
(-6) + (-4.25) = -10.25
-10.25 + 1.3 = -8.95
Answer:
-8.95
Step-by-step explanation:
1.3-6-4.25=-8.95
Type the correct answer in the box. Use numerals instead of words.
Find the sum of a finite geometric series.
At the beginning of every year, Molly deposits $200 in a savings account that offers an interest rate of 20%, compounded annually. The total
amount that Molly will have in her account at the end of 3 years is $
Answer:
$345.60
Step-by-step explanation:
From the above question,
P = Principal = $200
R = Interest rate = 20%
T = Time in years = 3 years
n = Number of times interest is compounded = Annually = 1
First, convert R as a percent to r as a decimal
r = R/100
r = 20/100
r = 0.2 rate per year,
Then solve the equation for A
The formula =
A = P(1 + r/n)^nt
A = 200.00(1 + 0.2/1)^(1×3)
A = 200.00(1 + 0.2)^(3)
A = $345.60
Therefore, the total amount that Molly will have in her account at the end of 3 years is $345.60
PLEASE HELP!
Y=5x-9
-2x-3y=-7
Please show
work!
substition for math
Answer:
ill edit this and Post the answer in a few m0ments .....
Step-by-step explanation:
Answer:
J
Step-by-step explanation:
K. since you thought it was so funny to do it to me