Question

20. Fill in the blank. Historically, the average score of PGA golfers is 72.13 with a...

20. Fill in the blank. Historically, the average score of PGA golfers is 72.13 with a standard deviation of 1.825. A random sample of 48 golfers is taken. There is an 86% chance that the average score is less than ________ strokes.

a. 74.1

b. 72.41

c. 73.16

d. 75.85

Homework Answers

Answer #1

Solution :

Given that,

mean = = 72.13

standard deviation = = 1.825

n = 48

= 72.13

= / n = 1.825 / 48 = 0.2634

P(Z < z) = 86%

P(Z < 1.08) = 0.86

z = 1.08

= z * + = 1.08 * 0.2634 + 72.13 = 72.41

There is an 86% chance that the average score is less than 72.41 strokes.

option b) is corect

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