4. Use a two-tailed t-test for independent samples to compare the means of: a. Active group vs. 8 Week Control Group b. Passive group vs. 8 Week Control Group c. No exercise group vs. 8 Week Control Group
4. Use a two-tailed t-test for independent samples to compare the means of: a. Active group vs. 8 Week Control Group b. Passive group vs. 8 Week Control Group c. No exercise group vs. 8 Week Control Group
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please use excel, thank you
Transcribed Image Text:4. Use a two-tailed t-test for independent samples to compare the means of:
a. Active group vs. 8 Week Control Group
Passive group vs. 8 Week Control Group
b.
c. No exercise group vs. 8 Week Control Group
d. Active group vs. Passive group.
e. Active group vs. No exercise group
f. Passive Group vs. No exercise Group
Screen shot the table for the result of your t-test for a, b, c, d, e and f.
Transcribed Image Text:Zelazo et al. (1972) investigated the variability in age at first walking in infants.
Study infants were grouped into four groups, according to reinforcement of walking and
placement: (1) active (2) passive (3) no exercise; and (4) 8-week control. Sample sizes
were 6 per group, for a total of n=24. For each infant, study data included group
assignment and age at first walking, in months. The following are the data and consist of
recorded values of age (months) by group:
The following are the data and consist of recorded values of age (months) by group:
Active Group
Passive Group
No-Exercise Group
8 Week Control
9.00
11.00
11.50
13.25
9.50
10.00
12.00
11.50
9.75
10.00
9.00
12.00
10.00
11.75
11.50
13.50
13.00
10.50
13.25
11.50
9.50
15.00
13.00
12.35
Source: Zelazo et al (1972) "Walking" in the newborn. Science 176: 314-315.
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