8. The average amount of time boys and girls ages 7 through 11 spend playing sports each day is believed to be the same. An experiment is done, data is collected, resulting in the data below: Sample Size Average Number of Hours Playing Sports Per Day Of 32 girls, the average number hours playing sports is 2 with a standard deviation of 0.75. Of 35 boys, the average number hours playing sports is 3.2 with a standard deviation of 1. there a difference in the average amount of time boys and girls ages 7 through 11 play sports ach day? Test at the 5% level of significance. (You DO NOT need to show all steps- just state est statistic, p-value versus alpha, formal conclusion and practical conclusion in a complete entence)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Need help with number 8 and 9 I don’t quite understand the question.
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$50,781. (Be sure to show all steps of the hypothesis test)
8. The average amount of time boys and girls ages 7 through 11 spend playing sports each
day is believed to be the same. An experiment is done, data is collected, resulting in the
data below:
Sample Size Average Number of Hours Playing Sports Per Day
Of 32 girls, the average number hours playing sports is 2 with a standard deviation of 0.75.
Of 35 boys, the average number hours playing sports is 3.2 with a standard deviation of 1.
Is there a difference in the average amount of time boys and girls ages 7 through 11 play sports
each day? Test at the 5% level of significance. (You DO NOT need to show all steps- just state
test statistic, p-value versus alpha, formal conclusion and practical conclusion in a complete
sentence)
9. A medical researcher wants to test the effects of calcium supplements on men's blood
pressure. In part of the study, 10 randomly selected men are given a calcium supplement for
12 weeks. The researcher measures the men's diastolic blood pressure at the beginning and
end of the study. At a = 0.10, can the researcher claim that the men's diastolic blood pressure
decreased?
4
5
6
7
9
10
Patient 1
Before 107
3
110
123
129
112
111
107
112
136
102
After
100
114
105
112
115
116
106
102
125
104
115%
Page 3 of 3
707 words
2 Focus
目
Transcribed Image Text:AutoSave ON W Hypothesis Te... - Saved me Insert Draw Design Layout » Tell me 2 Share Q Comments ste Font Paragraph Styles Dictate Sensitivity $50,781. (Be sure to show all steps of the hypothesis test) 8. The average amount of time boys and girls ages 7 through 11 spend playing sports each day is believed to be the same. An experiment is done, data is collected, resulting in the data below: Sample Size Average Number of Hours Playing Sports Per Day Of 32 girls, the average number hours playing sports is 2 with a standard deviation of 0.75. Of 35 boys, the average number hours playing sports is 3.2 with a standard deviation of 1. Is there a difference in the average amount of time boys and girls ages 7 through 11 play sports each day? Test at the 5% level of significance. (You DO NOT need to show all steps- just state test statistic, p-value versus alpha, formal conclusion and practical conclusion in a complete sentence) 9. A medical researcher wants to test the effects of calcium supplements on men's blood pressure. In part of the study, 10 randomly selected men are given a calcium supplement for 12 weeks. The researcher measures the men's diastolic blood pressure at the beginning and end of the study. At a = 0.10, can the researcher claim that the men's diastolic blood pressure decreased? 4 5 6 7 9 10 Patient 1 Before 107 3 110 123 129 112 111 107 112 136 102 After 100 114 105 112 115 116 106 102 125 104 115% Page 3 of 3 707 words 2 Focus 目
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