Assume that you were trying to find out if the population proportion of Americans which currently smoke that have tried to quit was more than 75%. You decide to test null hypothesis Ho: p = 0.75 versus Ha: p > 0.75.
In 1993, the General Social Survey had question that asked its participants (that currently smoked) if they had ever tried to quit smoking. Out of 288, 218 said yes, they had tried to quit smoking. Determine the value of the test statistic for this problem?