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All work must be shown to qualify for partial credit. Each answer must provide a managerial explanation of the outcomes.Please include the excel spreadsheet with the work. Use data in file “weeklypay” to answer questions in file “2” and “golfscores” for question 3.
2.docx

3.docx

2_weeklypay.xlsx

3_golfscores.xlsx

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1. A recent issue of the AARP Bulletin reported that the average weekly pay for a woman
with a high school degree is $520. Suppose you would like to determine if the average
weekly pay for all working women is significantly greater than that for women with a
high school degree. Data providing the weekly pay for a sample of 50 working women
are available in the file named WeeklyPay. These data are consistent with the findings
reported in the AARP article.
a. State the hypotheses that should be used to test whether the mean weekly pay for all
women is significantly greater than the mean weekly pay for women with a high school
degree.
b. Use the data in the file named WeeklyPay to compute the mean, the test statistic, and the
p-value.
c. Use α = 0.05, what is your conclusion?
d. Repeat the hypothesis test using the critical value approach.
1. Scores in the first and fourth (final) rounds of a sample of 20 golfers who competed in
PGA tournaments are shown in the file GolfScores. Suppose you would like to determine
if the mean score for the first round of PGA Tour event is significantly different than the
mean score of the fourth (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. Set your hypothesis to test if there is difference in the mean scores of the first and fourth
rounds.
b. Use α= .10 to test for a statistically significant difference between the population means
for first- and fourth-round scores. What is the p-value? What is your conclusion?
c. Will your conclusion in a) change if α = 0.05?
Weekly Pay
582
333
759
633
629
523
320
685
599
753
553
641
290
800
696
627
679
667
542
619
950
614
548
570
678
697
750
569
679
598
596
557
657
617
1230
648
760
804
675
736
565
587
565
687
498
712
533
424
772
691
Player
Round 1 Round 2
Michael Letzig
70
72
Scott Verplank
71
72
D.A. Points
70
75
Jerry Kelly
72
71
Soren Hansen
70
69
D.J. Trahan
67
67
Bubba Watson
71
67
Reteif Goosen
68
75
Jeff Klauk
67
73
Kenny Perry
70
69
Aron Price
72
72
Charles Howell
72
70
Jason Dufner
70
73
Mike Weir
70
77
Carl Pettersson
68
70
Bo Van Pelt
68
65
Ernie Els
71
70
Cameron Beckman
70
68
Nick Watney
69
68
Tommy Armour III
67
71

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