7.86 Revisiting dietary composition. In Exercise 7.71 (page 457), the total amount of fats was analyzed using the two-sample t procedures that do not assume equal standard douin no

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 I uploaded the data for 7.71 but, I need 7.86. 

For 7.71 my answers were, test stat = 1.6160, D.F= 400, Pvalue=.1081, C.I.=(-.375,3.775) and I concluded that we fail to reject H0 

 

7.86 Revisiting dietary composition. In Exercise 7.71
(page 457), the total amount of fats was analyzed
using the two-sample t procedures that do not assume
equal standard deviations. Compare the means using a
significance test and find the 95% confidence interval
for the difference using the pooled methods. How do the
results compare with those you obtained in Exercise 7.71?
Transcribed Image Text:7.86 Revisiting dietary composition. In Exercise 7.71 (page 457), the total amount of fats was analyzed using the two-sample t procedures that do not assume equal standard deviations. Compare the means using a significance test and find the 95% confidence interval for the difference using the pooled methods. How do the results compare with those you obtained in Exercise 7.71?
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
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
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