A physical therapist claims that one 600-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions. 15 males made on a hand dynamometer (measures grip strength) until the grip strengths in three consecutive trials were 50% of their maximum grip strength. At α = 0.05, is there enough evidence to support the therapist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. Click the icon to view the repetitions data. X - Repetitions Data Participant Repetitions (using Repetitions (using Vitamin C) placebo) 1 805 1306 2 293 386 3 278 406 4 410 434 5 688 965 6 468 761 7 594 623 8 549 862 9 899 1418 10 760 1201 11 731 817 12 739 1252 13 224 270 14 845 1075 15 323 425 (a) Identify the claim and state Ho and Ha What is the claim? OA. Using a placebo decreases muscular endurance. O B. Using Vitamin C increases muscular endurance. OC. Using Vitamin C decreases muscular endurance. OD. Using a placebo increases muscular endurance.
A physical therapist claims that one 600-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions. 15 males made on a hand dynamometer (measures grip strength) until the grip strengths in three consecutive trials were 50% of their maximum grip strength. At α = 0.05, is there enough evidence to support the therapist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. Click the icon to view the repetitions data. X - Repetitions Data Participant Repetitions (using Repetitions (using Vitamin C) placebo) 1 805 1306 2 293 386 3 278 406 4 410 434 5 688 965 6 468 761 7 594 623 8 549 862 9 899 1418 10 760 1201 11 731 817 12 739 1252 13 224 270 14 845 1075 15 323 425 (a) Identify the claim and state Ho and Ha What is the claim? OA. Using a placebo decreases muscular endurance. O B. Using Vitamin C increases muscular endurance. OC. Using Vitamin C decreases muscular endurance. OD. Using a placebo increases muscular endurance.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Transcribed Image Text:A physical therapist claims that one 600-milligram dose of Vitamin C will increase muscular endurance. The table available below shows the numbers of repetitions
15 males made on a hand dynamometer (measures grip strength) until the grip strengths in three consecutive trials were 50% of their maximum grip strength. At
x = 0.05, is there enough evidence to support the therapist's claim? Assume the samples are random and dependent, and the population is normally distributed.
Complete parts (a) through (e) below.
Click the icon to view the repetitions data.
Repetitions Data
Participant Repetitions
(using
Repetitions
(using Vitamin C)
placebo)
1
805
1306
2
293
386
3
278
406
4
410
434
5
688
965
6
468
761
7
594
623
8
549
862
9
899
1418
10
760
1201
11
731
817
12
739
1252
13
224
270
14
845
1075
15
323
425
(a) Identify the claim and state Ho and Ha
What is the claim?
A. Using a placebo decreases muscular endurance.
B. Using Vitamin C increases muscular endurance.
C. Using Vitamin C decreases muscular endurance.
D. Using a placebo increases muscular endurance.
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