Consider the following hypothesis test: H 0:   20 H a:  < 20 A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2. a.  Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus “-” sign b.  What is the p-value (to 3 decimals)? c.  Using  = .05, can it be concluded that the population mean is less than 20?SelectYesNoItem 3 d.  Using  = .05, what is the critical value for the test statistic? If your answer is negative, use minus “-” sign e.  State the rejection rule: Reject H 0 if z is Selectgreater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the critical value. f.  Using  = .05, can it be concluded that the population mean is less than 20?SelectYesNoItem 6

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Consider the following hypothesis test:

H 0:   20

H a:  < 20

A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.

a.  Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus “-” sign

b.  What is the p-value (to 3 decimals)?

c.  Using  = .05, can it be concluded that the population mean is less than 20?
SelectYesNoItem 3

d.  Using  = .05, what is the critical value for the test statistic? If your answer is negative, use minus “-” sign

e.  State the rejection rule: Reject H 0 if z is Selectgreater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the critical value.

f.  Using  = .05, can it be concluded that the population mean is less than 20?
SelectYesNoItem 6

 
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