Answer:
what
Step-by-step explanation:
Answer:
im confused
Step-by-step explanation:
You apply for a job and have to take a drug test. You are curious about the error rate for the test so you do some research. You find a study where 47 out of 382 test results using this test were wrong (either a false positive or a false negative). The company that produces the drug test claims that less than 14% of the test results are wrong. Test if this seems accurate.
Answer:
Test statistic Z = -1.0
|Z| = |-1.0| < 1.96 at 0.05 level of significance.
The null hypothesis is accepted
The company that produces the drug test claims that less than 14% of the test results are wrong
Step-by-step explanation:
Step(i):-
Given that the population proportion P = 14% =0.14
Given that the sample size 'n' = 382 tests
Given that find a study where 47 out of 382 test results using this test were wrong (either a false positive or a false negative).
Sample proportion
[tex]p = \frac{x}{n} = \frac{47}{382} = 0.1230[/tex]
Null hypothesis: H₀ : P = 0.14
Alternative Hypothesis:H₁ : P≠ 0.14
Step(ii):-
Test statistic
[tex]Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }[/tex]
[tex]Z = \frac{0.1230-0.14}{\sqrt{\frac{0.14 X0.86}{382} } }[/tex]
Z = - 1.0
|Z| = |-1.0| < 1.96 at 0.05 level of significance.
Final answer:-
The null hypothesis is accepted
The company that produces the drug test claims that less than 14% of the test results are wrong
A baseball is thrown upwards from an elevation of 64 feet. The ball reaches a
maximum elevation of 100 ft after one-and-a-half seconds and lands on the
ground (elevation of Oftafter four seconds.
A quadratic function models this situation. On the grid below, sketch a graph
of this function.
What is the y-intercept? Label. What does it represent in the context of
the problem?
Baseball Throw
100
90
What is the x-intercept? Label. What does it represent in the context of
the problem?
80
70
60
What is the vertex? Label. What does it represent in the context of the
50
problem?
40
30
What is the Domain of your sketch?(written in proper form)
20
10
What is the Range of your sketch? (written in proper form)
0
0 1 2 3 4
Time (seconds)
Elevation (ft)
Answer:
Hello, I am having difficulties understanding thsi question, could youplease help me out so I can help you out?
Step-by-step explanation:
Thank you! -Brainly Userx^3=27 what is the value of x?
Answer:
x = 3
Step-by-step explanation:
3*3*3 = 9*3 = 27
Step-by-step explanation:
Let's solve your equation step-by-step.
[tex]x^3 =27[/tex]
Step 1: Take cube root.
[tex]x = (27)^(1/3)[/tex]
[tex]x=3[/tex]
Explanation in words (Short Form)
- Move the variable to the left and the other values to the right to determine the value of x. To ascertain the outcome, simplify the values.
- In this equation (x^3=27), we can solve this equation by taking the cube root and then ascertaining the outcome. The answer will result as x = 3 at the end for the following equation: x^3=27 to finding the value for x.
Answer:
[tex]x=3[/tex]
Hope this helps.
HELPP BRAINLIEST!!!!!
Answer:
--you would decompose it into a rectangle and triangle along the dotted line then add the two areas together to get the total area. the area of the trapezoid is 59.375 ft²
--i havent seen the other problem so i cant answer the convince me part, but you should be able to say how its different from the answer above^^^
Step-by-step explanation:
hope this helps :)
What is the percent of change from 0.36 to 1.19?
Answer:
230.56%
Step-by-step explanation:
maybe
A basketball league assigns 8 players to each team. How many players can sign up for the league if there are 24 teams?
Answer:
192
Step-by-step explanation:
If there are 8 players on a team, and a total of 24 teams, you will need to multiply 8 x 24 to find the answer.
8 x 24 = 192 players can sign up for the league.
(hope this helps can i plz have brainlist :D hehe)
Answer:
192 players
Step-by-step explanation:
8x24=192
8 is the 8 players per team, since there are 24 teams available, multiply 8 by 24.
Choose all of the statements that indicate long-term advantages in placing a larger down payment on a car loan received from a bank.
A). Using a larger down payment often results in lower interest rates on the loan for the vehicle.
B) The amount of money placed upfront on a car loan is usually rebated back to the borrower at the end of the loan.
C) Placing a larger down payment on the loan typically lessens the total amount required to be paid back on the loan.
Eliminate
D) Using a larger down payment creates a larger principal on the loan, meaning the interest paid on the loan will be smaller.
E) Putting down more money upfront on a loan allows more money to be invested elsewhere by the borrower during the length of the car loan.
Answer: A, C
Because I got it right on the USA Test Prep
Answer:
A and C
Step-by-step explanation:
I got it right on Usatestprep
help pls pls pls シ
And thanks!
Answer:
the answer the 10.25 u move both decimals over and move it up to the top and divide like normal
Write an equation of the line below.
Answer (assuming it can be in slope-intercept form):
[tex]y = \frac{4}{5} x[/tex]
Step-by-step explanation:
1) First, find the slope of the line. Use the slope formula [tex]m = \frac{y_2-y_1 }{x_2-x_1}[/tex] and substitute the x and y values of two points on the line into it. We can see that the line passes through (0,0) and (5,4), so let's use those points for the formula and solve:
[tex]m = \frac{4-0}{5-0} \\m = \frac{4}{5}[/tex]
So, the slope is [tex]\frac{4}{5}[/tex].
2) Next, identify the y-intercept of the line. The y-intercept is the point at which the line intersects the y-axis. We can see that the line intersects the y-axis at (0,0), so that must be the y-intercept.
3) Now, write the equation of the line in slope-intercept form using the [tex]y = mx + b[/tex] format. The number in place of [tex]m[/tex] represents the slope, so substitute [tex]\frac{4}{5}[/tex] in its place. The number in place of [tex]b[/tex] represents the y-intercept, so substitute 0 in its place. This gives the following answer and equation:
[tex]y =\frac{4}{5} x+0\\y = \frac{4}{5} x[/tex]
Answer:
y=4/5x
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept
In this problem, the slope is 4/5 because m=rise/run.
I need help with a Delta math Assignment
Gabriella made 5% of her free throws over the season. If she shot 180 free throws, how many did she make?
Answer:
9
Step-by-step explanation:
After multiplying both the numerators and the denominators, it's time to simplify or
reduce your product.
Example: 2/5x3/4 = 6/20.
The greatest common factor of 6 and 20 is 2. We divide the top and bottom by 2, which
simplifies to 3/10.
What is the reduced product of 2/3 x 5/8?
A
10/24
B
5/12
С
1/2
D
10/12
Answer: The answer is B, 5/12.
hope this helped :)
Answer:
B. 5/12
Step-by-step explanation:
2/3 x 5/8 = 10/24
The greatest common factor of 10 and 24 is 2.
Since the GCF is 2,
We divide the numerator and denominator by 2 and get 5/12.
Therefore, the simplified fraction of 10/24 is 5/12.
From Barbie dolls to runway models, women in Western countries are exposed to unrealistically thin and arguably unhealthy body standards for their gender. A body mass index (BMI) between 18.5 and 24.9 is considered healthy. Using a 3D computer avatar, participants built what they considered the ideal body of an adult of their own gender. Below appears a summary of the results for a sample of 40 female heterosexual Caucasian undergraduate students from British universities that had been recruited by the researchers. Mean BMI was recorded to be 18.85 with standard deviation 1.75. Does the data provide evidence that young Caucasian women in British Universities, on average, aim for an unhealthy ideal body type (corresponding to a BMI less than 18.5)? Use α = 0.10.
Required:
a. Construct a 99% confidence interval for the mean BMI for young Caucasian women in British universities using R. Use at least 2 decimals in your answer.
b. Would a 99% CI (for the mean BMI) constructed using a smaller sample than the one used for part a) tend to be wider or narrower? Explain.
Answer:
(18.1361 ; 19.5639) ;
using a smaller sample will widen the margin
Step-by-step explanation:
Given :
Xbar = 18.85
Standard deviation, s = 1.75
Sample size, n = 40
Confidence interval is obtained using the relation :
Xbar ± Margin of error
Margin of Error = Zcritical * s/ √n
Zcritical at 99% = 2.58
Margin of error = 2.58 * (1.75/√40) = 0.7139
Lower boundary = 18.85 - 0.7139 = 18.1361
Upper boundary = 18.85 + 0.7139 = 19.5639
(18.1361 ; 19.5639)
B.)
The sample size, n being the denominator in the margin error formula increases the error value as it reduces or decreases in value Hence widens the interval. Conversely, increasing the sample size reduces the error margin value and ultimately narrows the interval.
Therefore, using a smaller sample will widen the margin
In 2003, approximately 0.38% of the U.S. population had HIV/AIDS. Of these, it was estimated that 24.8% were not aware they have the disease. What is the probability that a randomly selected 82 Chapter 3 Conditional Probability and Independence person who does not know whether or not he or she has the disease will actually have it
Answer:
oklhhhf78 yr f brainpop
There are 3 students in the class and 27 apples. If the apples are shared equally by all of the students. How many apples will each student get? Please write your answers in complete sentences.
Answer:
9(Nine)
Step-by-step explanation:
9 × 3 = 27
so Each student will get 9 apple's
is 3m, 4m, 5m a right triangle YES OR NO
Is 14m, 48m, 50m a right triangle YES OR NO
HURRY
Answer:
I thing they both are........
someone please help me answer this!
Answer:
72 mi is the answer.
Step-by-step explanation:
a = 30 mi
b = ?
c = 78 mi
According to the Pythagoras theorem,
a² + b² = c²
30² + b² = 78²
900 + b² = 6084
b² = 6084 - 900
b² = 5184
b = 72 mi
∴ the eastbound airplane has travelled 72 mi.
12.
The Mills Library has 1,007,199 books. The Springvale Library
has 907,082 books. Which of the following is the best
estimate of how many more books the Mills Library has than
the Springvale Library?
A.
100,000 books
B.
80,000 books
C.
10,000 books
D.
8,000 books
E.
1,000 books
Consider the line y=7x+4.
Find the equation of the line that is parallel to this line and passes through the point ( -3, 5)
Find the equation of the line that is perpendicular to this line and passes through the point ( -3, 5)
Answer:
parallel y=7x+26
perpendicular y=1/7x+32/7
Step-by-step explanation:
parallel line have the same slope
y-5=7(x-(-3))
y-5=7(x+3)
y-5=7x+21
y=7x+21+5
y=7x+26
perpendicular slope is the opposite of the original slope of 7
y-5=-1/7(x-(-3))
y-5=-1/7(x+3)
y-5=-1/7x-3/7
y=-1/7x-3/7+5
y=-1/7x+32/7
Can you give me proably a little step by step to the answer so I can understand it a bit more?
Answer:
120 square inches.
Step-by-step explanation:
This is a regular octagon. (It has 8 equal sides). You have enough information to find the area of 1 triangle.label the bottom line as 5.Draw two lines from the center to each end of the bottom 5 inch line.That gives you 1 triangle. Find the area of that 1 triangle.Area = 1/2 b * hb = 5h = 6Area = 1/2 * 5 * 6Area = 15.Now here's the actual answer.You have 8 such triangles. The area of the octagon is 8 * 15 = 120 square inches.q is a degree 5 polynomial that passes through the origin, has zeros i and 3 - i, and q( - 2) = - 520. Find
the equation for g.
User for your input. Simplify your answer so that it has only real numbers as coefficients.
A bar of soap weighs 175 g. How much do 15 bars of soap weigh in ounces?
Answer:
92.59 ounces................
Answer:
92.5941501 ounces, 93 ounces if rounded to whole number, and 92.6 if rounded to the nearest tenth.
Step-by-step explanation:
Hope this helps! have a great day
i need help please it's due today
Answer:
Step-by-step explanation:
Aaron works at a furniture store. He sells a table that normally costs $670 but is on sale
for 15% off. If he makes 8% commission on
the sale price, how much will he make in
commission?
The annual profits for a company are given in the following table where X represents the number of years since 2004 and Y represents the profit in thousands of dollars write the linear regression equation that represents the set of data rounding are Koi fishes to the nearest 10th using this equation find the projected profit in thousands of dollars for 2016 rounded to the nearest thousand dollars
Answer: number of years since 2012, and y represents the profit in thousands of ... Write the linear regression equation that represents this set of data, ... calendar year in which the profits would reach 234 thousand dollars.
Step-by-step explanation:
Plz help me! Well mark brainliest if correct!
Answer:
diameter you are learning that the circle as a line in the middle goes across and the diameter
30 POINT REWARD!!! (haha I need to write 20 characters so that why this is here ps. please help)
Answer
Sorry, I need points to ask more question.
The map shows the distance in air miles from City A to both City B and City C.
City B
49 miles
N
City A 66 miles City C
Which of the following could be the distance between City B and City C in air miles?
O 114 miles
O 116 miles
O 118 miles
120 miles
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answer:
When two lines are crossed by another line (called the Transversal): Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.
Select all the numbers that round to 0.1 when rounded to the nearest tenth ?
Can someone help me please? I forgot how to do this
Answer:
90°-33°=57°
57=2x+1
-1. -1
56=2x divide both sides by 2
28=x
x =28
Answer:
x = 28
Step-by-step explanation:
Both of these would add up to 90 degrees.
Equation → 2x + 1 + 33 = 90
Add like terms → 2x + 34 = 90
Subtract both sides by 34 → 2x + 34 - 34 = 90 - 34
Divide both sides by 2 → 2x = 56
→ x = 28
hope this helps! :)