(Please only answer question number 2) Question number 1 is for reference. Thnak you!

1. A researcher expects the population proportion of Cubs fans in Chicago to be 80 percent. The researcher wishes to have an error of less than 5 percent and to be 95 percent confident of an estimate to be made from a mail survey. What sample size is required? (show your full calculations)

Z = 1.96

E = 0.05

p = 0.8

q = 0.20

2. Describe the measures of central tendency and calculate each for the following salary data: $25,000, $35,000, $35,000, $40,000, $50,000, $70,000, and $350,000. Which is the best measure of central tendency for this data?