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(Solved): Consider the following hypothesis test. H_(0):\mu >=20 H_(2):\mu <20 A sample of 50 provided a ...



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 :

?

(b) Find the p-value. (Round your answer to four decimal places)

?

Using a

=0.05

state your conclusion.

?

(Reject/De not reforet if, There is

?

Isuffic



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