Chris Lane, the head professional at Royal Oak Country Club, must develop a schedule of matches for the couples golf league that begins its season at 4:00 pm tomorrow. Eighteen couples signed up for the league, and each couple must play every other couple over the course of the 17-week season. Chris thought it would be fairly easy to develop a schedule, but after working on if for a couple of hours, he has been unable to come up with a schedule. Because Chris must have a schedule ready by tomorrow afternoon, he has asked you to help him. A […]

A coin is tossed 24 times. 6. In how many outcomes do exactly 18 heads occur? a. 3,060 b. 134,596 c. 386,387 d. 485,347 e. 5,735 7. In how many outcomes do at least 4 tails occur? a. 18,108,837 b. 16,774,891 c. 12,048,000 d. 14,384,687 e. 17,854,864

A manufacturer who is considering the implementation of a one-week training program for all new employees decides to test the program with the next 100 employees hired, and then compare their productivity rate to the productivity rate of new employees based on past records—a rate that is normally distributed with a mean of 60 and a standard deviation of 8. The new program needs to produce a minimum improvement of 4 to be considered worthwhile. What is the comparison distribution’s standard deviation? 

I am trying to figure out how many participants i will need for my research. i need help with the analysis to figure out the needed survey sample size.  As of right know i propose of using 60 mid level and senior level pilots, but my professor said that will not be enough for the survey. I don’t understand what he wants. thanks

Suppose you want to estimate, with 95% confidence, the population mean force required to break an insulator to within +/- 25 pounds. On the basis of a study conducted the previous year, you believe that the standard deviation is 100 pounds. Determine the sample size needed.