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Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in golf toumaments are shown in the following table. First Final Round Round Player Player First Final Round Round Golfer 11 72 72 Golfer 17072 Golfer 2 71 72 Galler 20 Golfer 12 72 70 Cellur 13 20 23 Golf 4 er 14 70 75 72 70 67 71 69 Golfer 5 Golfer 15 GA 70 Golfer 57 Golfer 10 68 GS Galler 21 58 Golfer 1) 17 21 20 H el 15 70 511 5 Golfer 73 Golfer 19 G9 GB Golfer 10 70 59 Golfer 20 67 71 Suppose you would like to determine if the mean score for the first round of a goir 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? (a) Use 0.10 to test for a statistically significantly difference between the population means for first and fourthround scores w the rullend alternative hypothes. ( La mare first round - man came fourth murd.) MM, 50 91,- Hi, Call the value of the island your www to the decimal pl.) Calculate the p-value. (reund your answer to four decimal places.) P p-value-C State your conclusion Reject H. There is sufficient evidence to conclude that the mean score for the first round of gor tournament is significant different than the mean score for the fourth and final round Reject 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. Dan Het H. There is sufficient avicence to unclude that the car for the first round of all tournament by igncently different than the cor for the fourth and final round. Do not reject No. 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. (6) 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 fourth round scores was lower than the mean of the first round scores The mean of the first round scores was lower than the mean of the fourth round senres.

Scores in the first and fourth (final) rounds for a sample of 20 gollers who competed in golf tournaments are shown in the following table. Player First Round Final Round First Round Player Final Round Galfer 1 70 72 Golfer 11 72 72 Galfer 2 71 72 Golfer 12 72 70 Galfer 3 70 74 Golfer 13 70 73 Gaiter 4 72 71 Coirer 14 מל 76 Gaiter 5 70 699 Goiter 15 70 Gaiter 67 67 Golfer 15 68 65 Golfer 7 71 66 Golfer 17 71 70 Golfer 68 75 Golrer 18 70 66 Gallery 67 Golfer 19 69 66 Golfer 10 70 69 Golfer 20 67 71 Suppose you would like to determine if the mean score for the first round of a golf tournament event is significardy 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 corre down? (a) 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 , - mean score first round - mean score fourth round.) ON X3-0 O HOENSD HTMD O HO 4.0 OH : X2 - 0 OH :X,> 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. O 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 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. 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. 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? O The mean of the fourth round scores was lower than the mean of the first round scores. The mean of the first round scores was lower than the mean of the fourth round scores. Submit Answer