Question: Given a simple random sample of size n = 18 from a Normal population with mean and standard deviation , we test the hypotheses ,

Given a simple random sample of size n = 18 from a Normal population with mean and standard deviation , we test the hypotheses

,

at the 5% significance level. If is known, and the observed value of the test statistic is 1.77, determine the result of the test.

a More information is required to determine the result of the test

b The test rejects H0 in favour of H1

c The test does not reject H0 in favour of H1

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