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Name: A researcher obtains a sample of n= 25 adults who are between the ages
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Description: A researcher obtains a sample of n= 25 adults who are between the ages of 65 and 75. The researcher measures cognitive performance for each individual before and after a two-month program in which participants receive daily doses of a blueberry suppl

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher obtains a sample of n= 25 adults who are between the ages of 65 and 75. The researcher measures cognitive performance for each individual before and after a two-month program in which participants receive daily doses of a blueberry supplement. The results show an average increase in performance of M_D= 8, with SS = 1200. Use a one-tailed test with α = .01

Construct a 95% confidence interval to estimate the average cognitive performance improvement for the population of older adults.

The lower boundary is

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