Question

Find z* for each of these situations, taking into account whether the test is one-sided or two-sided.   Then find the p-value, indicating its relation to alpha. Finally, determine if the hypothesis test would lead to rejection of the null.

Test statistic(z) = -1.19,       Ho : p = .20,        Ha : p ≠ .20,         α = .10

Answer 1

solution:

this is the two tailed test .  

The null and alternative hypothesis is ,

H0 :   = 0.20

Ha :     0.20

Test statistic = z = -1.19

P(z < -1.19 ) = 0.1170

P-value = 2*0.1170=0.234

= 0.10

P-value >

do not Reject the null hypothesis .

There is sufficient evidence to suggest that