Please explain the result. A hypothesis will be used to test that a population mean equals...

Question

Question

A hypothesis will be used to test that a population mean equals 13 against the alternative that the population mean is less t

Please explain the result.

Answer 1

Answer #1

Answer:

Given,

It is a left tailed test

alpha = 0.030

So,

Critical value of z = - 1.88 [since from z table]

z value = - 1.88

Answer 2

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