Assume that the significance level is a005 Use the given inf

Assume that the significance level is a=0.05. Use the given information to find the P-value and the critical value(s). With H1: p 2/5, the test statistic is z= 1.98.

Solution

As this is a two tailed test as H1 uses =/=, then, the critical values at 0.05 level, by table or technology, are

zcrit = -1.959963985, 1.959963985 [ANSWER, CRITICAL VALUE]

Meanwhile, using table/technology, the two tailed P balue for z = -1.98 is

P = 2*0.023851764 = 0.047703529 [ANSWER, P VALUE]