For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.What percentage of your campus student body is female? Let p be the proportion of women students on your campus. (a) If no preliminary study is made to estimate p, how large a sample is needed to be 99% sure that a point estimate p̂ will be within a distance of 0.05 from p? (Round your answer up to the nearest whole number.) students(b) A report indicates that approximately 64% of college students are females. Answer part (a) using this estimate for p. (Round your answer up to the nearest whole number.) students

A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. D a. Find and interpret the range. The range is days.

A sleep researcher record the duration of sleep (in hours) on a typical night and on the night before an exam. A different score was calculated for every person. What scale of measurement is the difference score? A. Ordinal B. Nominal C. Ratio D. Interval

Samantha is estimating the width of a lake. She stands at point B and looks through a long-range scope. She sees a boat shed at point A that is about 9 miles away and a tall tree at point C that is about 7 miles away. Which of the following is closest to the distance, in miles, across the lake from point A to point C?         12.9         9.7         10.6         11.4

#gn. Don't provide handwriting solution

The Margaria-Kalamen test is used by physical educators as a measure of leg strength. An individual runs up a staircase, and the elapsed time from the third to the ninth step is recorded. The power score is calculated using a formula involving the individual's weight, the height of the stairs, and the running time. The following tablet shows the power scores required of men for an excellent rating for selected ages. Age 18 25 35 45 55 Power score for excellent rating 224 210 168 125 98 (a) What is the average rate of change per year in excellence level from 18 years to 25 years old? -2 points per year (b) What power score would merit an excellent rating for a 20-year-old man? (Round your answer to the nearest whole number.) points