Question

Using the traditional hypothesis testing approach, calculate the critical value for testing the null hypothesis that...

Using the traditional hypothesis testing approach, calculate the critical value for testing the null hypothesis that the population mean is greater than or equal to 8, given a sample size of 32, a population standard deviation 3.63, and a significance level of 0.05.

K =  
Round to two decimals.

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Homework Answers

Answer #1

Solution :

The null and alternative hypothesis is ,

H0 :   = 8

Ha : 8

= 3.63

n = 32

= 0.05  

This is the right tailed test,

P( Z > z ) = 0.05

= 1 - P( Z < z ) = 0.05

=  P( Z < z ) = 1 - 0.05

=  P( Z < z ) = 0.95

=  P( Z < 1.65 ) = 0.95

K = 1.65

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