Question

The United States government claims DUI arrests average 22084 per state per year. A sample of size n=10 states finds the mean to be 44002. If DUI arrests are normally distributed with a standard deviation of 28,584. Select the most appropriate null and alternative hypothesis that will help deciding whether DUI arrests are differ than government claims.

H0 = 44002, Ha ≠ 44002
	H0 = 44002 , Ha ≠ 44002
	H0 = 22084 , Ha ≠ 22084
	H0 = 22084 , Ha ≠ 22084

Answer 1

Solution :

This is the two tailed test .

The null and alternative hypothesis is ,

H₀ :  $\mu$ = 22084

H_a : $\mu$ $\neq$ 22084