Question

Player First Round Final Round Golfer 1 70 72 Golfer 2 71 72 Golfer 3 70...

Player First
Round
Final
Round
Golfer 1 70 72
Golfer 2 71 72
Golfer 3 70 75
Golfer 4 72 71
Golfer 5 70 69
Golfer 6 67 67
Golfer 7 71 67
Golfer 8 68 73
Golfer 9 67 73
Golfer 10 70 69
Player First
Round
Final
Round
Golfer 11 72 72
Golfer 12 72 70
Golfer 13 70 73
Golfer 14 70 77
Golfer 15 68 70
Golfer 16 68 66
Golfer 17 71 70
Golfer 18 70 68
Golfer 19 69 68
Golfer 20 67 71

Suppose you would like to determine if the mean score for the first round of a 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?

(a) Use α = 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 μd = mean score first round − mean score fourth round.

Calculate the value of the test statistic. (Round your answer to three decimal places.)

p-value =

(b) What is the point estimate of the difference between the two population means? (Use mean score first round − mean score fourth round.)

a)

value of the test statistic =-1.445

p value =0.1648

b)

point estimate of the difference between the two population means = -1

Earn Coins

Coins can be redeemed for fabulous gifts.