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  3. consider the following hypothesis test: h 0: Â

Consider the following hypothesis test: H 0:   50 H a:  > 50 A sample of 60 is used and the...

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Question

Statistics

Consider the following hypothesis test:

H 0:   50

H a:  > 50

A sample of 60 is used and the population standard deviation is7. Use the critical value approach to state your conclusion foreach of the following sample results. Use  = .05.

a. With  = 52.5, what is the value of the teststatistic (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
3.9 Ratings (701 Votes)
50n 60 7The zcritical value for a righttailed test for a significancelevel of 005 is zc 164a 525z    See Answer
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