Question

Asked Nov 24, 2019

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I would like the solutions for each part of the problem

Step 1

Given:

The provided sample mean is = 11 and the known population standard deviation is σ = 3, and the sample size is n = 31.

The following null and alternative hypotheses need to be tested:

Step 2

a) This corresponds to a one-tailed test, for which a z-test for one mean, with known population standard deviation and n>30 will be used.

b)

Decision rule:

Reject H_{0}, if z>1.645

Step 3

c)

Test statist...

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