Concept explainers
The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who were vegans and another sample of such women who were omnivores (“Vegetarianism, Bone Loss, and Vitamin D: A Longitudinal Study in Asian Vegans and Non-Vegans,” European J. of Clinical Nutr., 2012: 75–82).
Diet | Sample |
Sample SD | |
Vegan | 88 | 5.10 | 1.07 |
Omnivore | 93 | 5.55 | 1.10 |
Calculate and interpret a 99% CI for the difference between population mean total cholesterol level for vegans and population mean total cholesterol level for omnivores (the cited article included a 95% CI). [Note: The article described a more sophisticated statistical analysis for investigating bone density loss taking into account other characteristics (“
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Chapter 9 Solutions
Probability and Statistics for Engineering and the Sciences
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