Chapter 5.1, Problem 33E

a.

To determine

Calculate a standardized test statistic using the sample proportion $\widehat{p}=0.20$ and the standard error estimated from randomization distribution.

b.

To determine

Find the p-value for an upper tail alternative based on test statistic found in Part (a) using normal distribution.

c.

To determine

Explain the reason for discrepancy between the p-values obtained from the normal distribution in Part (b) and the p-value shown for the randomization distribution.