deniation 4. About 10% of people in the United States do not wear a seat belt. Suppose we plan to select a random sample of 180 U.S. residents. Let = the proportion of people in the sample who do not...

Extracted text: deniation 4. About 10% of people in the United States do not wear a seat belt. Suppose we plan to select a random sample of 180 U.S. residents. Let = the proportion of people in the sample who do not wear their seat belt. a. Calculate the mean and standard deviation of the sampling distribution of p. b. Interpret the standard deviation. c. Justify that the sampling distribution of p is approximately normal. d. What is the probability that at least 15% of the individuals