Question: (7 pts)

a. The mean time (in seconds) of 53 men who qualified for the men’s alpine downhill race was 113.02 sec with a standard deviation of 3.24 sec. If these scores are normally distributed, what proportion will be less than 109.78?

b. Use the formula (or statcrunch procedure) we’ve reviewed to find the percentile (P) of a given score. What’s the actual proportion of times less than 109.78? (In other words: find the percentile rank associated with a score of 109.78)

c. Find the mean,

d. median,

e. mode, and

f. skew of the data set.

g. Do you think, in actuality, that the Men’s Alpine Downhill data is normally distributed? Yes or No