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.

2. Test statistic(z) = -2.84,    Ho : p = .10, Ha : p < .10,               α = .06

Answer 1

Solution :

This is the left tailed test .

The null and alternative hypothesis is

H0 : p =0.10

Ha : p < 0.10

Test statistic = z =-2.84

P(z < -2.84) = 0.0023

P-value = 0.0023

= 0.05

P-value <

Reject the null hypothesis .