ng nypothesis test: Ho: µ = 16 Ha:µ# 16 A sample of 50 provided a sample mean of 14.11. The population standard deviation is 6. Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals). b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations. c. Using a = 0.05, can it be concluded that the population mean is not equal to 16? - Select your answer - v d. What is the rejection rule using the critical value? Reject Ho if z is - Select your answer - v the lower critical value and is Select your answer- v the upper critical value. Using a = 0.05, what are the critical values for the test statistic? (+ or -) (to 2 decimals) Can it be concluded that the population mean is not equal to 16? - Select your answer - v
ng nypothesis test: Ho: µ = 16 Ha:µ# 16 A sample of 50 provided a sample mean of 14.11. The population standard deviation is 6. Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals). b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations. c. Using a = 0.05, can it be concluded that the population mean is not equal to 16? - Select your answer - v d. What is the rejection rule using the critical value? Reject Ho if z is - Select your answer - v the lower critical value and is Select your answer- v the upper critical value. Using a = 0.05, what are the critical values for the test statistic? (+ or -) (to 2 decimals) Can it be concluded that the population mean is not equal to 16? - Select your answer - v
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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![Consider the following hypothesis test:
Но:
= 16
На: д + 16
A sample of 50 provided a sample mean of 14.11. The population standard deviation is 6. Enter negative value as negative number.
a. Compute the value of the test statistic (to 2 decimals).
b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations.
c. Using a = 0.05, can it be concluded that the population mean is not equal to 16?
- Select your answer - ♥
d. What is the rejection rule using the critical value?
Reject Ho if z is
- Select your answer -
v the lower critical value and is
- Select your answer -
the upper critical value.
Using a =
0.05, what are the critical values for the test statistic? (+ or -)
(to 2 decimals)
Can it be concluded that the population mean is not equal to 16?
- Select your answer - ♥](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c882010-0792-425e-8bf2-0bc82f1b2109%2F2b9a99d0-778a-464f-9d1a-883024a0126b%2Fus3omfxj_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the following hypothesis test:
Но:
= 16
На: д + 16
A sample of 50 provided a sample mean of 14.11. The population standard deviation is 6. Enter negative value as negative number.
a. Compute the value of the test statistic (to 2 decimals).
b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations.
c. Using a = 0.05, can it be concluded that the population mean is not equal to 16?
- Select your answer - ♥
d. What is the rejection rule using the critical value?
Reject Ho if z is
- Select your answer -
v the lower critical value and is
- Select your answer -
the upper critical value.
Using a =
0.05, what are the critical values for the test statistic? (+ or -)
(to 2 decimals)
Can it be concluded that the population mean is not equal to 16?
- Select your answer - ♥
![According to the IRS, taxpayers calling the IRS in 2017 waited 14 minutes on average for an IRS telephone assister to answer. Do callers who use the IRS help line early in the day have a shorter
wait? Suppose a sample of 50 callers who placed their calls to the IRS in the first 30 minutes that the line is open during the day have a mean waiting time of 12 minutes before an IRS telephone
assister answers. Based on data from past years, you decide that it is reasonable to assume that the standard deviation of waiting times is 10 minutes. Using these sample results, can you conclude
that the waiting time for calls placed during the first 30 minutes the IRS help line is open each day is significantly less than the overall mean waiting time of 14 minutes? Use a =
= 0.05.
State the hypotheses.
Но:
- Select your answer -
Ha: µ
- Select your answer -
What is the p-value (to 4 decimals)?
Can you conclude that callers who use the IRS help-line early in the day have a shorter wait?
- Select your answer - ♥](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c882010-0792-425e-8bf2-0bc82f1b2109%2F2b9a99d0-778a-464f-9d1a-883024a0126b%2Fd9bid0i_processed.png&w=3840&q=75)
Transcribed Image Text:According to the IRS, taxpayers calling the IRS in 2017 waited 14 minutes on average for an IRS telephone assister to answer. Do callers who use the IRS help line early in the day have a shorter
wait? Suppose a sample of 50 callers who placed their calls to the IRS in the first 30 minutes that the line is open during the day have a mean waiting time of 12 minutes before an IRS telephone
assister answers. Based on data from past years, you decide that it is reasonable to assume that the standard deviation of waiting times is 10 minutes. Using these sample results, can you conclude
that the waiting time for calls placed during the first 30 minutes the IRS help line is open each day is significantly less than the overall mean waiting time of 14 minutes? Use a =
= 0.05.
State the hypotheses.
Но:
- Select your answer -
Ha: µ
- Select your answer -
What is the p-value (to 4 decimals)?
Can you conclude that callers who use the IRS help-line early in the day have a shorter wait?
- Select your answer - ♥
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