STATS - 4 questions - High School level - Must be completed in 4 Hours! - Easy!

SD = Standard Deviation

Ichio 262 hits 2004 – Mean 155, SD 25

Sizler 257 hits 1920 – Mean 158, SD 30

1. Who had better performance based on above? Explain your reasoning.

2. Ochoa – avg. 265.2 yds, SD 12.8 yds

a. What proportion of the drive goes less than 260 yards?

b. What proportion of the drive goes morre than 285 yds?

c. What proportion of the drive goes Between 265-275 ?

3. Bonus – golfer – mean of 255 yds at 14.5% of drives goes less than 250 yds,

a. What is the SD? (distribution normal)

b. How far must she drive the ball in order to represent the 95th percentile value?

4. In 2009, Drew Brees averaged 293 passing yards per game, SD – 74 yards

a. Calculate and interpet z-score for 172 yds

b. Distribution of passing yards by drawing a curve and label values of means +- 1 SD,

+-2 SD, +-3 SD

c. Between which 2 values you expect the middle 95% of his performances is to be?

d. Based on 2009 performance, is it likely that Brees can throw over 500 yards?