Pond Road Medical is a highly regarded clinic in Melbourne for the past 20 years. The average waiting time of a patient in this clinic is 25 minutes and the standard deviation is 10.25 minutes. Assume you want to test the following hypotheses and found the mean waiting time of 20 patient is 18 minutes.  Ho: μ 25 Ha: μ < 25 a)  What is the value of the test statistic?  b)   What is the p-value? c)    At α =.01, what is your conclusion?

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Pond Road Medical is a highly regarded clinic in Melbourne for the past 20 years. The average waiting time of a patient in this clinic is 25 minutes and the standard deviation is 10.25 minutes. Assume you want to test the following hypotheses and found the mean waiting time of 20 patient is 18 minutes.

 Ho: μ 25

Ha: μ < 25

a)  What is the value of the test statistic? 

b)   What is the p-value?

c)    At α =.01, what is your conclusion? 

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