Question

Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis.

α = 0.08; H1 is μ ≠ 3.24

Answer 1

The value is
`1.75 \ and \ -1.75`

Explanation:

From the question we are told that

The null hypothesis is
`H_1 : \mu \\e 3.24`

The level of significance is
`\alpha = 0.08`

From the z table the critical value of
`\alpha` considering the two tails of the normal curve( This is because this a two tailed test ) is

`z= \pm 1.75`

Hence the critical value is

`1.75 \ and \ -1.75`