109. Suppose a study was done to replicate the results of the 2003 study by Wansink et al. in Physiology Behavior. Participants were asked to rate different food items as "comfort foods" on a scale of 1 = strongly disagree to 5 = strongly agree. Results are displayed below for participants' ratings of "Vegetables, Casseroles, Sides" as comfort food. Is there evidence that at least one age group bhas a different average rating for "Vegetables, Casseroles, Sides" as comfort food? HELEN Subject 18-34 35-54 55+ 1 3 3 3 2 3 2 3 3 4 3 5 2 6 3 7 3 8 2 9 3 10 3 3 2 3 3 3 2 3 2 3 4 3 3 4 3 3 3 3 poz 129 (a) State the hypotheses for the test. (b) Use the calculator to find the test statistic and p-value of the test. (c) Interpret the p-value and state the conclusion of the test in terms of the problem.
109. Suppose a study was done to replicate the results of the 2003 study by Wansink et al. in Physiology Behavior. Participants were asked to rate different food items as "comfort foods" on a scale of 1 = strongly disagree to 5 = strongly agree. Results are displayed below for participants' ratings of "Vegetables, Casseroles, Sides" as comfort food. Is there evidence that at least one age group bhas a different average rating for "Vegetables, Casseroles, Sides" as comfort food? HELEN Subject 18-34 35-54 55+ 1 3 3 3 2 3 2 3 3 4 3 5 2 6 3 7 3 8 2 9 3 10 3 3 2 3 3 3 2 3 2 3 4 3 3 4 3 3 3 3 poz 129 (a) State the hypotheses for the test. (b) Use the calculator to find the test statistic and p-value of the test. (c) Interpret the p-value and state the conclusion of the test in terms of the problem.
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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109 please
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109. Suppose a study was done to replicate the results of the 2003 study by Wansink et al. in Physiology
& Behavior. Participants were asked to rate different food items as "comfort foods" on a scale of
1 = strongly disagree to 5 = strongly agree. Results are displayed below for participants' ratings
of "Vegetables, Casseroles, Sides" as comfort food. Is there evidence that at least one age group
has a different average rating for "Vegetables, Casseroles, Sides" as comfort food?
Subject 18-34 35-54 55+
3
3
1
2
3
4
5
6
7
8
9
10
11
12
1
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26
22
31
24
36
29
30
26
27
23
29
26
2 3
3
2
3
4
5
6
7
8
9
10
3
3
3
2
3
2
323 32
3
3
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3
3
3
(a) State the hypotheses for the test.
(b) Use the calculator to find the test statistic and p-value of the test.
(c) Interpret the p-value and state the conclusion of the test in terms of the problem.
31
32
21
32
21
028
27
30
4
3
110. Does the lifespan of a shark depend on the species of shark? It is known that the lifespan depends
on whether the shark is begin held in captivity or in the wild. For consistency, a researcher used
GPS to track several sharks in the wild from four different species. Using the data provided,
perform the appropriate test to determine if there is evidence that the average lifespan is different
for at least one species of shark. Be sure to include all the necessary steps.
Subject Tiger Shark Great White Blue Shark Hammerhead
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31
21
29
16
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19
32
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25
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16
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3
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3
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3
3
129
111. Answer the following general questions about the Chi-Square test for independence.
(a) Chi-square tests are appropriate for data that is
(b) The null hypothesis is that the two variables are
(categorical/quantitative)
(independent/dependent)
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