Consider the following hypothesis test.
H_(0):\mu >=20
H_(2):\mu <20
A sample of 50 provided a sample mean of 19.1. Assume that the sample size is large enough for the Central Limit Theorem to apply. The population standard deviation is 2 . (a) Find the value of the test statistic. (Round your answer to two decimal places) (b) Using a
=0.05
, state the critical values for the rejection rule. (Round your answer to two decimal places. If the test is one-sided, enter NONE for the unused tail!) The null typothesls will be rejected if: test statistic s
?
or test statistic :
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(b) Find the p-value. (Round your answer to four decimal places)
?
Using a
=0.05
state your conclusion.
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(Reject/De not reforet if, There is
?
Isuffic