A physical therapist claims that one? 600-milligram dose of Vitamin C will increase muscular endurance. The...
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A physical therapist claims that one? 600-milligram dose ofVitamin C will increase muscular endurance. The table availablebelow shows the numbers of repetitions 1515 males made on a handdynamometer? (measures grip? strength) until the grip strengths inthree consecutive trials were? 50% of their maximum grip strength.At ?=0.01 is there enough evidence to support the ? therapist'sclaim? Assume the samples are random and? dependent, and thepopulation is normally distributed.
Repetitions
?(using placebo)
Repetitions
?(using Vitamin? C)
1
632
1074
2
759
1000
3
147
213
4
177
190
5
872
1264
6
790
1311
7
129
141
8
446
685
9
838
1258
10
290
458
11
877
944
12
174
281
13
719
878
14
151
194
15
328
457
1)Calculate sd (Round to one decimal place as? needed.)
2)Calculate the test statistic (Round to one decimal place as?needed.)
3)Decide whether to reject or fail to reject the null hypothesisand interpret the decision in the context of the originalclaim.
A physical therapist claims that one? 600-milligram dose ofVitamin C will increase muscular endurance. The table availablebelow shows the numbers of repetitions 1515 males made on a handdynamometer? (measures grip? strength) until the grip strengths inthree consecutive trials were? 50% of their maximum grip strength.At ?=0.01 is there enough evidence to support the ? therapist'sclaim? Assume the samples are random and? dependent, and thepopulation is normally distributed.
Repetitions ?(using placebo) | Repetitions ?(using Vitamin? C) | |||||
|---|---|---|---|---|---|---|
1 | 632 | 1074 | ||||
2 | 759 | 1000 | ||||
3 | 147 | 213 | ||||
4 | 177 | 190 | ||||
5 | 872 | 1264 | ||||
6 | 790 | 1311 | ||||
7 | 129 | 141 | ||||
8 | 446 | 685 | ||||
9 | 838 | 1258 | ||||
10 | 290 | 458 | ||||
11 | 877 | 944 | ||||
12 | 174 | 281 | ||||
13 | 719 | 878 | ||||
14 | 151 | 194 | ||||
15 | 328 | 457 | ||||
1)Calculate sd (Round to one decimal place as? needed.)
2)Calculate the test statistic (Round to one decimal place as?needed.)
3)Decide whether to reject or fail to reject the null hypothesisand interpret the decision in the context of the originalclaim.
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