Use the information below to answer Questions # 37 - 42. The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore are shown in the table below. At a = 0.01, is there enough evidence to support the claim that the pass completion percentages have changed? Assume the samples are random and dependent, and the population is normally distributed. Player: 1 2 3 4 5 6 7 10 Completion % (Freshman): 67.4 61.5 56.2 61.0 63.5 51.0 58.0 62.4 56.4 57.2 Completion % (Sophomore): 66.9 57.5 63.0 62.3 61.9 58.7 63.4 61.4 58.2 59.1 Let Ha be the hypothesized mean of the difference between pass completion percentages (freshman - sophomore). Write the claim mathematically and identify the null and the alternative hypotheses. Choose the correct answer below. O Ho: Hd 2 d Hai ld < d (claim) O Ho: Hd 20 H: Hd < 0 (claim) O Ho: Ha = 0 H: ld #0 (claim) O Ho: Hd # 0 Hạ: Hd = 0 (claim) O Ho: Hd <0 Ha: Hd > 0 (claim) O Ho: µd < d Hai Hd > d (claim)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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question 37 and 38

Use the information below to answer Questions #37 - 42.
The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore are shown in the
table below. At a =0.01, is there enough evidence to support the claim that the pass completion percentages have
changed? Assume the samples are random and dependent, and the population is normally distributed.
Player:
6
1
2
3
4
7
9.
10
Completion % (Freshman): 67.4
61.5
56.2
61.0
63.5
51.0
58.0
62.4
56.4
57.2
Completion % (Sophomore): 66.9
57.5
63.0
62.3
61.9
58.7
63.4
61.4
58.2
59.1
Let Ha be the hypothesized mean of the difference between pass completion percentages (freshman - sophomore).
Write the claim mathematically and identify the null and the alternative hypotheses. Choose the correct answer below.
O Ho: Hd 2 d
Hai µd < d (claim)
O Ho: Hd 20
H3: Hd < 0 (claim)
O Ho: Hd = 0
H: Hd #0 (claim)
O Ho: Hd + 0
Hạ: Hd = 0 (claim)
O Ho: Hd <0
0 (claim)
Ho: µd < d
Ha: Hd > d (claim)
Transcribed Image Text:Use the information below to answer Questions #37 - 42. The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore are shown in the table below. At a =0.01, is there enough evidence to support the claim that the pass completion percentages have changed? Assume the samples are random and dependent, and the population is normally distributed. Player: 6 1 2 3 4 7 9. 10 Completion % (Freshman): 67.4 61.5 56.2 61.0 63.5 51.0 58.0 62.4 56.4 57.2 Completion % (Sophomore): 66.9 57.5 63.0 62.3 61.9 58.7 63.4 61.4 58.2 59.1 Let Ha be the hypothesized mean of the difference between pass completion percentages (freshman - sophomore). Write the claim mathematically and identify the null and the alternative hypotheses. Choose the correct answer below. O Ho: Hd 2 d Hai µd < d (claim) O Ho: Hd 20 H3: Hd < 0 (claim) O Ho: Hd = 0 H: Hd #0 (claim) O Ho: Hd + 0 Hạ: Hd = 0 (claim) O Ho: Hd <0 0 (claim) Ho: µd < d Ha: Hd > d (claim)
Use the information below to answer Questions #37 - 42.
The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore are shown in the
table below. At a =0.01, is there enough evidence to support the claim that the pass completion percentages have
changed? Assume the samples are random and dependent, and the population is normally distributed.
Player:
5 6
1.
2
3
4
7
8
10
Completion % (Freshman): 67.4
61.5
56.2
61.0
63.5
51.0
58.0
62.4
56.4
57.2
Completion % (Sophomore): 66.9
57.5
63.0
62.3
61.9
58.7
63.4
61.4
58.2
59.1
What is the claim? Choose the correct answer below.
O The pass completion percentages have increased.
The pass completion percentages have decreased.
The pass completion percentages have changed.
The pass completion percentages have not changed.
Transcribed Image Text:Use the information below to answer Questions #37 - 42. The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore are shown in the table below. At a =0.01, is there enough evidence to support the claim that the pass completion percentages have changed? Assume the samples are random and dependent, and the population is normally distributed. Player: 5 6 1. 2 3 4 7 8 10 Completion % (Freshman): 67.4 61.5 56.2 61.0 63.5 51.0 58.0 62.4 56.4 57.2 Completion % (Sophomore): 66.9 57.5 63.0 62.3 61.9 58.7 63.4 61.4 58.2 59.1 What is the claim? Choose the correct answer below. O The pass completion percentages have increased. The pass completion percentages have decreased. The pass completion percentages have changed. The pass completion percentages have not changed.
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