Researchers compared protein intake among three groups of postmenopausal women: (1) women eating a standard American diet (STD), (2) women eating a lactoovo-vegetarian diet (LAC), and (3) women eating a strict vegetarian diet (VEG). The mean ± 1 sd for protein intake (mg) is presented in Table 12.29. *12.4 Suppose that in the general population, 70% of vegetarians are lacto-ovo-vegetarians, whereas 30% are strict vegetarians. Perform a statistical procedure to test whether the contrast L y = + 07 03 2 3y y − 1 . . is significantly different from 0. What does the contrast mean? 12.5 Using the data in Table 12.29, perform a multiple comparisons procedure to identify which specific underlying means are different.
Researchers compared protein intake among three groups of postmenopausal women: (1) women eating a standard American diet (STD), (2) women eating a lactoovo-vegetarian diet (LAC), and (3) women eating a strict vegetarian diet (VEG). The mean ± 1 sd for protein intake (mg) is presented in Table 12.29.
*12.4 Suppose that in the general population, 70% of vegetarians are lacto-ovo-vegetarians, whereas 30% are strict vegetarians. Perform a statistical procedure to test whether the contrast L y = + 07 03 2 3y y − 1 . . is significantly different from 0. What does the contrast mean?
12.5 Using the data in Table 12.29, perform a multiple comparisons procedure to identify which specific underlying means are different.
![TABLE 12.29 Protein intake (mg) among three
dietary groups of postmenopausal
women
Group
Mean
sd
n
STD
75
9
10
LAC
57
13
10
VEG
47
17
6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F14b27660-6bd0-4ee7-ba85-a18f37a57681%2F40fbcfea-4935-4370-978a-f86e7c2b0595%2Fdmnrkl_processed.png&w=3840&q=75)
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