7.71 Comparison of dietary composition. Refer to Example 7.15 (page 443). That study also broke down the dietary composition of the main meal. The following table summarizes the total fats, protein, and carbohydrates in the main meal (g) for the two groups: Fats Protein Carbohydrates Early eaters (n 202) Late eaters (n X 23.1 27.6 64.1 S 12.5 8.6 21.0 21.4 25.7 63.5 200) S 8.2 6.8 20.8 (b) Describe appropriate null and alternative hypotheses for comparing the two groups in terms of fats consumed. (c) Carry out the significance test using a = 0.05. Report the test statistic with the degrees of freedom and the P-value. Write a short summary of your conclusion. (d) Find a 95% confidence interval for the difference between the two means. Compare the information given by the interval with the information given by the significance test.
7.71 Comparison of dietary composition. Refer to Example 7.15 (page 443). That study also broke down the dietary composition of the main meal. The following table summarizes the total fats, protein, and carbohydrates in the main meal (g) for the two groups: Fats Protein Carbohydrates Early eaters (n 202) Late eaters (n X 23.1 27.6 64.1 S 12.5 8.6 21.0 21.4 25.7 63.5 200) S 8.2 6.8 20.8 (b) Describe appropriate null and alternative hypotheses for comparing the two groups in terms of fats consumed. (c) Carry out the significance test using a = 0.05. Report the test statistic with the degrees of freedom and the P-value. Write a short summary of your conclusion. (d) Find a 95% confidence interval for the difference between the two means. Compare the information given by the interval with the information given by the significance test.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Transcribed Image Text:7.71 Comparison of dietary composition. Refer
to Example 7.15 (page 443). That study also broke
down the dietary composition of the main meal. The
following table summarizes the total fats, protein, and
carbohydrates in the main meal (g) for the two groups:
Fats
Protein
Carbohydrates
Early eaters (n = 202) Late eaters (n = 200)
x
23.1
27.6
64.1
S
12.5
8.6
21.0
x
21.4
25.7
63.5
S
8.2
6.8
20.8
(b) Describe appropriate null and alternative hypotheses
for comparing the two groups in terms of fats consumed.
(c) Carry out the significance test using a = 0.05. Report
the test statistic with the degrees of freedom and the
P-value. Write a short summary of your conclusion.
(d) Find a 95% confidence interval for the difference
between the two means. Compare the information
given by the interval with the information given by the
significance test.
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