SOLUTION: Provide an appropriate response. Sally wants to test the hypotheses shown below. Null hypothesis: mean = 30 Alternative hypothesis: mean

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Question 1169498: Provide an appropriate response.
Sally wants to test the hypotheses shown below.
Null hypothesis: mean = 30
Alternative hypothesis: mean > 30
Would she want to reject the null hypothesis if the sample mean turned out to be much smaller than 30? Explain your thinking.
Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website!
she is testing to see if the mean is greater than 30.
since the mean is less than 30, she could not reject the null hypothesis because the mean is not greater than 30.

she should, however, recommend another test to determine if the mean is less than 30.

an alternate test would be to determine if the mean is 30.
that test would look at the high end and the low end to see if the test criteria was met.

SOLUTION: Provide an appropriate response. Sally wants to test the hypotheses shown below. Null hypothesis: mean = 30 Alternative hypothesis: mean > 30 Would she want to reject the nul