Question

For a left-tailed test, the critical value of z so that a hypothesis test would __________ the null hypothesis at 5% significance level would be __________

Answer 1

1.65

Explanation:

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Answer 2

A) Reject

B)
`-Z_0_._0_5=-1.64485363`

Explanation:

From the question above

Significance level =5%=0.05

a)Generally the first dash is Reject to aid the alternative hypothesis without which the is no need to test

b)Generally we solve mathematically for a critical value

critical value
`= -Z_\alpha`

From normal table

`-Z_0_._0_5=-1.64485363`