Question: 7. A researcher is interested in studying memory declines in the elderly. The researcher selects a sample of 5 elderly participants and measures their ability

7.A researcher is interested in studying memory declines in the elderly. The researcher selects a sample of 5 elderly participants and measures their ability to remember a list of words. The number of correctly recalled words serves as the measure of elderly memory. The same group of elderly patients is measured in twice. There is 4-years between thetwo measures of memory (Xfirst= 14, X4= 8.2, sD= 1.92). Test the hypothesis that the memory of the elderly declines as they age.Use a 1-tailed test (directional) where = .05.

2.Compute the standard error of the difference scores:

3.Compute the t-test:

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