Answered: Count 186 40 H Mean StdDev 8.343 yd…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter7: Applying Fractions

Section7.5: Percents

Problem 62WE

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Driving distance 2011 How far do professional golfers
drive a ball? (For non-golfers, the drive is the shot hit
from a tee at the start of a hole and is typically the
longest shot.) The next page shows a histogram of the
average driving distances of the 186 leading professional
golfers by end of November 2011 along with summary
statistics (www.pgatour.com).a) Find a 95% confidence interval for the mean drive
distance.
b) Interpreting this interval raises some problems. Discuss.
c) The data are the mean driving distance for each
golfer. Is that a concern in interpreting the interval?
(Hint: Review the What Can Go Wrong warnings
of Chapter 8. Chapter 8?! Yes, Chapter 8.)

Count
186
40 H Mean
StdDev 8.343 yd
291.09 yd
30
5 20
10
260 270 280 290 300 310 320
Driving Distance
# of Golfers

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