Question

A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is less than 10 with known variance . What is the critical value for the test statistic for the significance level of 0.025? Round your answer to two decimal places (e.g. 98.76).

Answer 1

Answer:

Lets take the hypothesis

zα/2

- zα/2

Step-by-step explanation:

α/2 = 0.10/2 = 0.05

z(0.05) = 3.92

-z(0.05) = -3.92