1. Actually, I was able to work through these and done need them answered anymore. Thanks
4. Suppose the number of residents within five miles of each of your stores is asymmetrically distributed with a mean of 21 thousand and a standard deviation of 12.9 thousand.What is the probability that the average number of residents within five miles of each store in a sample of 45 stores will be more than 23.5 thousand?Please specify your answer in decimal terms and round your answer to the nearest hundredth (e.g., enter 12 percent as 0.12).

2.Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 28.4 minutes.

How many employees must be included in a sample to a 99 percent confidence interval for the average commute time with a confidence interval width of no more than 20 minutes?

Note that the correct answer will be evaluated based on the z-values in the summary table in the Teaching Materials section.

Remember to round your answerupto an integer.

Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel