Question: Consider the test H 0 : = 1 3 0 versus H a : > 1 3 0 using a large sample of size n

Consider the testH0:=130 versusHa:>130 using a large sample of sizen=200 . Assumes=20.

a. Find the value of the test statistic ifxbar=135

b. Refer to part a. Find the p-value of the test

c. Find the rejection region of the test for=.01

d. Refer to parts b and c. Use the p-value approach to make the appropriate conclusion.

e. Repeat part d, but use the rejection region approach

f. Do the conclusions, parts d and e, agree?

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