Researchers have noted a decline in cognitive functioning as people age (Bartus, 1990). However, the results from
Question:
a. Does this result support the conclusion that the antioxidant supplement has a significant effect on cognitive performance? Use a two-tailed test with a = .05.
b. Construct a 95% confidence interval to estimate the average cognitive performance improvement for the population of older adults.
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Related Book For
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781133956570
8th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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