Answer Happy

Fiew Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in golf tournaments are shown in the following table. Player First Round Final Round Player First Round Final Round Golfer 1 70 72 Golfer 11 72 NN Golfer 2 71 72 Golfer 12 70 Golfer 3 70 73 Golfer 13 70 73 Golfer 4 72 71 Golfer 14 70 75 Golfer 5 70 69 Golfer 15 68 70 Golfer 6 12 67 Golfer 16 68 66 Golfer 7 71 68 Golfer 17 70 21 20 Golfer 8 68 75 Golfer 18 68 Golfer 9 67 73 Golfer 19 69 68 Golfer 10 70 69 Golfer 20 67 71 Suppose you would like to determine if the mean score for the first round of golf tournament event is significantly different than the mean score for the fourth and 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? () Use a 0.10 to test for a statistically significantly difference between the population means for first and fourth-round scores. State the null and alternative hypotheses. (Use Homean score first round - mean score fourth round) Оноо Hi Ho so O HOMO MEMO

Calculate the value of the test statistic. (Round your answer to three decimal places.) Calculate the p-value. (Round your answer to four decimal places.) p-value- State your conclusion Do not Reject Ho There is sufficient evidence to conclude that the mean score for the first round of a golf tournament is significantly different than the mean score for the fourth and final round. O Reject Hy. There is insufficient evidence to conclude that the mean score for the first round of a golf tournament is significantly different than the mean score for the fourth and final round. Reject Hi There is sufficient evidence to conclude that the mean score for the first round of a golf tournament is significantly different than the mean score for the fourth and final round. Do not reject Ho. There is insufficient evidence to conclude that the mean score for the first round of a golf tournament is significantly different than the mean score for the fourth and final round. (b) What is the point estimate of the difference between the two population means? (Use mean score first round - mean score fourth round) For which round is the population mean score lower? The mean of the first round scores was lower than the mean of the fourth round scores, The mean of the fourth round scores was lower than the mean of the first round scores,