# Question

A recent study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (The Wall Street Journal, May 5, 2010). Suppose a random sample of 100 teen drivers is taken.

a. Discuss the sampling distribution of the sample proportion.

b. What is the probability that the sample proportion is less than 0.80?

c. What is the probability that the sample proportion is within 60.02 of the population proportion?

a. Discuss the sampling distribution of the sample proportion.

b. What is the probability that the sample proportion is less than 0.80?

c. What is the probability that the sample proportion is within 60.02 of the population proportion?

## Answer to relevant Questions

According to a recent FCC survey, one in six cell phone users has experienced "bill shock" from unexpectedly high cell phone bills (Tech Daily Dose, May 26, 2010). a. Discuss the sampling distribution of the sample ...A and b. σ 30. A random sample of size n=100 is taken from a population of size N=2,500 with mean µ = 245 and variance σ- =81. a. Is it necessary to apply the finite population correction factor? Explain. Calculate the ...A recent study finds that companies are setting aside a large chunk of their IT spending for green technology projects (BusinessWeek, March 5, 2009). Two out of three of the large companies surveyed by Deloitte said they ...Major League Baseball Rule 1.09 states that "the baseball shall weigh not less than=or more than=1⁄4 ounces" (http://www.mlb.com). Use these values as the lower and the upper control limits, respectively. Assume the ...While starting salaries have fallen for college graduates in many of the top hiring fields, there is some good news for business undergraduates with concentrations in accounting and finance (Bloomberg Business week, July 1, ...Post your question

0