# Question: Newsweek November 23 1992 reported that 40 of all U S

Newsweek (November 23, 1992) reported that 40% of all U.S. employees participate in “self-insurance” health plans (p = .40).

a. In a random sample of 100 employees, what is the approximate probability that at least half of those in the sample participate in such a plan?

b. Suppose you were told that at least 60 of the 100 employees in a sample from your state participated in such a plan. Would you think p = .40 for your state? Explain.

a. In a random sample of 100 employees, what is the approximate probability that at least half of those in the sample participate in such a plan?

b. Suppose you were told that at least 60 of the 100 employees in a sample from your state participated in such a plan. Would you think p = .40 for your state? Explain.

## Relevant Questions

The amount of money spent by a customer at a discount store has a mean of $100 and a standard deviation of $30. What is the probability that a randomly selected group of 50 shoppers will spend a total of more than $5300? For each of the following choices, explain which would result in a wider large-sample confidence interval for p: a. 90% confidence level or 95% confidence level b. n = 100 or n = 400 If a hurricane was headed your way, would you evacuate? The headline of a press release issued January 21, 2009 by the survey research company International Communications Research (icrsurvey.com) states, “Thirtyone ...In an AP-AOL sports poll (Associated Press, December 18, 2005), 394 of 1000 randomly selected U.S. adults indicated that they considered themselves to be baseball fans. Of the 394 baseball fans, 272 stated that they thought ...A consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that have an actual fat content exceeding the fat content stated on the label. How many packages of ground ...Post your question