a. Use a = 0.10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value?t-value(to 3 decimals)Degrees of freedomp-value is greater than 0.20What is your conclusion?There is nosignificant 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 roundc. What is the margin of error for a 90% confidence interval estimate for the difference between the population means?(to 3 decimals)Could this confidence interval have been used to test the hypothesis in part (a)?YesExplain.Use the point of the difference between the two population means and add and subtract this MOE. If zero isin the interval thedifference is not statistically significant. If zero is notin the interval the difference is statistically significant. Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in PGA tournaments are shown in the following table. Suppose you wouldlike to determine whether the mean score for the first round of PGA Tour event is significantly different than the mean score for the fourth and final round. Doesthe pressure of playing in the final round cause scores to go up? Or does the increased player concentration cause scores to come down? Enter negative valuesas negative numbers.FirstFinalFirstFinalPlayerRoundRoundPlayerRoundRoundMichael Letzig6766Aron Price7074Scott Verplank6668Charles Howell7672D.A. Points7665Jason Dufner6973Jerry Kelly6971Mike Weir7077Soren Hansen7575Carl Pettersson7665D.J. Trahan6672Вo Van Pelt6669Bubba Watson6576Ernie Els6772Reteif Goosen7377Cameron Beckman7275Jeff Klauk6872Nick Watney7467Kenny Perry6766Tommy Armour III7176

a. The test statistic and p-value value is obtained by using EXCEL. The software procedure is given…

a. Use a = 0.10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value? t-value (to 3 decimals) Degrees of freedom p-value is greater than 0.20 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 3 decimals) Could this confidence interval have been used to test the hypothesis in part (a)? Yes Explain. Use the point of the difference between the two population means and add and subtract this MOE. If zero is in the interval the difference is not statistically significant. If zero is not in the interval the difference is statistically significant.

a. Use a = 0.10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value? t-value (to 3 decimals) Degrees of freedom p-value is greater than 0.20 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 3 decimals) Could this confidence interval have been used to test the hypothesis in part (a)? Yes Explain. Use the point of the difference between the two population means and add and subtract this MOE. If zero is in the interval the difference is not statistically significant. If zero is not in the interval the difference is statistically significant.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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