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Author Question: Steve's average golf score at his local course is 92.9 from a random sample of 60 rounds of golf. ... (Read 812 times)

Pineappleeh

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Steve's average golf score at his local course is 92.9 from a random sample of 60 rounds of golf. Assume that the population standard deviation for his golf score is 4.2. The 99 confidence interval around this sample mean is ________.
 
  A) (87.6, 98.2)
  B) (90.7, 95.1)
  C) (89.5, 96.3)
  D) (92.4, 94.2)

Question 2

Suppose the average driving distance for last year's Masters Golf Tournament was 282.5 yards with a standard deviation of 12.2 yards. A random sample of 30 drives was selected from a total of 4,144 drives that were hit during this tournament.
 
  What is the probability that the sample average was 279 yards or less?A) 0.3540
  B) 0.2676
  C) 0.1611
  D) 0.0582


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dellikani2015

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