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A researcher wants to investigate different weigh loss options in rats. He divides 24 rats (equal weights) into 3 groups: Control (do not receive any physical exercise), Exercise (receive 6 weeks of physical exercise), and Pill(take diet pill for 6 weeks). He then measures their weight in grams after the 6 week period.  What is your conclusion?   Question 21 options:   There is no evidence to suggest a difference in weights between the three groups.   The exercise group weighed less than the pill group. No other significant differences.   The exercise group weighed less than the pill group and the control group. No other other significant differences.    The exercise group weighed the least, followed by the pill group and the control group weighed the most.

A researcher wants to investigate different weigh loss options in rats. He divides 24 rats (equal weights) into 3 groups: Control (do not receive any physical exercise), Exercise (receive 6 weeks of physical exercise), and Pill(take diet pill for 6 weeks). He then measures their weight in grams after the 6 week period.  What is your conclusion?   Question 21 options:   There is no evidence to suggest a difference in weights between the three groups.   The exercise group weighed less than the pill group. No other significant differences.   The exercise group weighed less than the pill group and the control group. No other other significant differences.    The exercise group weighed the least, followed by the pill group and the control group weighed the most.

MATLAB: An Introduction with Applications
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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A researcher wants to investigate different weigh loss options in rats. He divides 24 rats (equal weights) into 3 groups: Control (do not receive any physical exercise), Exercise (receive 6 weeks of physical exercise), and Pill(take diet pill for 6 weeks). He then measures their weight in grams after the 6 week period. 

What is your conclusion?
 

Question 21 options:

 
There is no evidence to suggest a difference in weights between the three groups.
 
The exercise group weighed less than the pill group. No other significant differences.
 
The exercise group weighed less than the pill group and the control group. No other other significant differences. 
 
The exercise group weighed the least, followed by the pill group and the control group weighed the most. 
Weight Control Exercised Pill Total Weight N Between Groups Within Groups Total Mean 8 419.187 8 322.875 8 373.113 24 371.725 Sum of Squares 37127.492 751.492 37878.985 Std. Deviation Std. Error 6.1578 2.1771 6.0422 2.1362 5.7385 2.0288 40.5822 8.2838 ANOVA df 2 Descriptives 21 23 Mean Square 18563.746 35.785 95% Confidence Interval for Mean Lower Bound Upper Bound 424.336 327.926 377.910 388.861 414.039 317.824 368.315 354.589 F 518.753 Sig. .000 Minimum Maximum 408.8 428.6 312.4 330.4 364.6 382.5 312.4 428.6
Transcribed Image Text:Weight Control Exercised Pill Total Weight N Between Groups Within Groups Total Mean 8 419.187 8 322.875 8 373.113 24 371.725 Sum of Squares 37127.492 751.492 37878.985 Std. Deviation Std. Error 6.1578 2.1771 6.0422 2.1362 5.7385 2.0288 40.5822 8.2838 ANOVA df 2 Descriptives 21 23 Mean Square 18563.746 35.785 95% Confidence Interval for Mean Lower Bound Upper Bound 424.336 327.926 377.910 388.861 414.039 317.824 368.315 354.589 F 518.753 Sig. .000 Minimum Maximum 408.8 428.6 312.4 330.4 364.6 382.5 312.4 428.6
Dependent Variable: Weight Tukey HSD (1) Group Control Std. Error 2.9910 Pill 2.9910 Control 2.9910 Pill 2.9910 Control 2.9910 Exercised 2.9910 *. The mean difference is significant at the 0.05 level. Exercised Pill Multiple Comparisons (J) Group Exercised Mean Difference (1- J) 96.3125 46.0750 -96.3125 -50.2375* -46.0750 50.2375* Sig. .000 .000 .000 .000 .000 .000 95% Confidence Interval Lower Bound 88.773 38.536 -103.852 -57.777 -53.614 42.698 Upper Bound 103.852 53.614 -88.773 -42.698 -38.536 57.777
Transcribed Image Text:Dependent Variable: Weight Tukey HSD (1) Group Control Std. Error 2.9910 Pill 2.9910 Control 2.9910 Pill 2.9910 Control 2.9910 Exercised 2.9910 *. The mean difference is significant at the 0.05 level. Exercised Pill Multiple Comparisons (J) Group Exercised Mean Difference (1- J) 96.3125 46.0750 -96.3125 -50.2375* -46.0750 50.2375* Sig. .000 .000 .000 .000 .000 .000 95% Confidence Interval Lower Bound 88.773 38.536 -103.852 -57.777 -53.614 42.698 Upper Bound 103.852 53.614 -88.773 -42.698 -38.536 57.777
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