Find the critical value zc necessary to form a confidence interval at the level of confidence c=0.94

Answers

The critical value of Z at the level of confidence c=0.94 is z = 1.91.

According to the statement

we have given that the a confidence interval at the level of confidence c=0.94. And we have to find the critical value of the z.

So, For this purpose, we know that the

Critical value can be defined as a value that is compared to a test statistic in hypothesis testing to determine whether the null hypothesis is to be rejected or not.

So, The given confidence interval is 0.94

Then

1- 0.94 = 0.6.

So, critical value for the 0.6 according to the table is

z = NORM SINV(.06/2)= 1.9112

And we know that the

The value of z with given confidence interval is

90%

z =1.645

92%

z = 1.751

95%

z = 1.96

98%

z = 2.326

So, The critical value of Z at the level of confidence c=0.94 is z = 1.91.

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