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Consider the following hypothesis test: H 0:   50 H a:  > 50 A sample of 55 is used and the...

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Finance

Consider the following hypothesis test:

H 0:   50

H a:  > 50

A sample of 55 is used and the population standard deviation is8. Use the critical value approach to state your conclusion foreach of the following sample results. Use  = .05.

With  = 52.5, what is the value of the test statistic(to 2 decimals)?
  

Can it be concluded that the population mean is greater than50?
SelectYesNoItem 2

b. With  = 51, what is the value of the test statistic(to 2 decimals)?
  

Can it be concluded that the population mean is greater than50?
SelectYesNoItem 4

c. With  = 51.8, what is the value of the teststatistic (to 2 decimals)?
  

Can it be concluded that the population mean is greater than50?
SelectYesNoItem 6

Answer & Explanation Solved by verified expert
4.1 Ratings (772 Votes)
H0 mean 50 sample size n 55 standard deviation sd 8 alpha 005 a x 525 zvalue x meansdn05 525 5085505 232 Test statistic Pvalue Probability z 232    See Answer
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Transcribed Image Text

Consider the following hypothesis test:H 0:   50H a:  > 50A sample of 55 is used and the population standard deviation is8. Use the critical value approach to state your conclusion foreach of the following sample results. Use  = .05.With  = 52.5, what is the value of the test statistic(to 2 decimals)?  Can it be concluded that the population mean is greater than50?SelectYesNoItem 2b. With  = 51, what is the value of the test statistic(to 2 decimals)?  Can it be concluded that the population mean is greater than50?SelectYesNoItem 4c. With  = 51.8, what is the value of the teststatistic (to 2 decimals)?  Can it be concluded that the population mean is greater than50?SelectYesNoItem 6

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