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ttersson 70 77 Bo Van Pelt 67 76 Ernie Els 71 76 Cameron Beckman 77 69

ttersson 70 77 Bo Van Pelt 67 76 Ernie Els 71 76 Cameron Beckman 77 69

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 25SGR
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Player First Round Final Round
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Kenny Perry 69 70
Aron Price 73 66
Charles Howell 69 66
Jason Dufner 65 65
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Carl Pettersson 70 77
Bo Van Pelt 67 76
Ernie Els 71 76
Cameron Beckman 77 69
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Tommy Armour III 77 73
Scores in the first and final rounds for a sample of 20 golfers who competed in tournaments are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet Suppose you would like to determine if the mean score for the first round of an event is significantly different than the mean score for the final round. Does the pressure of playing in the final round cause scores to go up? Or does the increased player concentration cause scores to come down? a. Use a = .10 to test for a statistically significantly difference between the population means for first- and final-round scores. What is the p-value? p-value is (to 4 decimals) What is your conclusion? There is no significant difference between the mean scores for the first and final rounds. b. What is the point estimate of the difference between the two population means? (to 2 decimals) For which round is the population mean score lower? First round c. What is the margin of error for a 90% confidence interval estimate for the difference between the population means? (to 2 decimals)
Transcribed Image Text:Scores in the first and final rounds for a sample of 20 golfers who competed in tournaments are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions. Open spreadsheet Suppose you would like to determine if the mean score for the first round of an event is significantly different than the mean score for the final round. Does the pressure of playing in the final round cause scores to go up? Or does the increased player concentration cause scores to come down? a. Use a = .10 to test for a statistically significantly difference between the population means for first- and final-round scores. What is the p-value? p-value is (to 4 decimals) What is your conclusion? There is no significant difference between the mean scores for the first and final rounds. b. What is the point estimate of the difference between the two population means? (to 2 decimals) For which round is the population mean score lower? First round c. What is the margin of error for a 90% confidence interval estimate for the difference between the population means? (to 2 decimals)
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