Consider the following hypothesis test: H0: mu=15 Ha: mu not = to 15   A sample of 40 provided a sample mean of 14.18 . The population standard deviation is 5 . 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=.05, can it be concluded that the population mean is not equal to 15 ?- Select your answer -YesNoItem 3 Answer the next three questions using the critical value approach. d. Using a=.05 , what are the critical values for the test statistic? (+ or -) (to 2 decimals) State the rejection rule: RejectH0 if z is - Select your answer -greater than or equal to greater than  less than or equal to less than equal to not equal to  the lower critical value and is - Select your answer -greater than or equal to greater than less than or equal to less than equal to not equal to  the upper critical value. Can it be concluded that the population mean is not equal to 15?- Select your answer -Yes No

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Consider the following hypothesis test:

H0: mu=15

Ha: mu not = to 15

 

A sample of 40 provided a sample mean of 14.18 . The population standard deviation is 5 . 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=.05, can it be concluded that the population mean is not equal to 15 ?
- Select your answer -YesNoItem 3

Answer the next three questions using the critical value approach.

d. Using a=.05 , what are the critical values for the test statistic? (+ or -)
 (to 2 decimals)

State the rejection rule: RejectH0 if z is - Select your answer -greater than or equal to greater than  less than or equal to less than equal to not equal to  the lower critical value and is - Select your answer -greater than or equal to greater than less than or equal to less than equal to not equal to  the upper critical value.

Can it be concluded that the population mean is not equal to 15?
- Select your answer -Yes No 

 
 
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