For a test of Ho p 05 the z test statistic equals 152 Find

For a test of Ho: p = 0.5, the z test statistic equals -1.52. Find the p-value for Ha: p < 0.5.

A. 0.1286

B. 0.0668

C. 0.0643

D. 0.9332

E. 0.1336

F. 0.9357

Solution

It is a left-tailed test.

So the p-value= P(Z<-1.52) = 0.0643 (from standard normal table)

Answer: C. 0.0643