Question

A random sample of 100 observations from a population with standard deviation 18.99 yielded a sample mean of 93.4.

1. Given that the null hypothesis is μ=90 and the alternative hypothesis is ?>90μ>90 using ?=.05α=.05, find the following:
(a) Test statistic ==  
(b)  P - value:   
(c) The conclusion for this test is:

A. Reject the null hypothesis
B. There is insufficient evidence to reject the null hypothesis
C. None of the above

2. Given that the null hypothesis is μ=90 and the alternative hypothesis is ?≠90 using ?=.05, find the following:
(a) Test statistic ==  
(b)  P - value:   
(c) The conclusion for this test is:

A. Reject the null hypothesis
B. There is insufficient evidence to reject the null hypothesis
C. None of the above

Answer 1