Posted: August 25th, 2023

Assignment

Research would like to examine the effects of humidity on eating behaviour. It is known that laboratory rats normally eat an average of µ = 21 grams of food each day. The research selects a random sample of n = 16 rats and places them in a controlled atmosphere room in which the relative humidity is maintained at 90%. The daily food consumption scores for rats are as follows:14, 18, 21, 15, 18, 18, 21, 1816, 20, 17, 19, 20, 17, 17, 19a.

Can the researcher conclude that humidity has a significant effect on eating behaviour? Use a two-tail test with α = .05.b. Compute the estimated Cohen's d and r2 to measure the size of the treatment effect.2. On a standardized spatial skills task, normative data reveal that people typically, get µ= 15 correct solutions. A psychologist tests n = 7 individuals who have brain injuries in the right cerebral hemisphere. For the following data, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha set at .05 with one tail. The data are as follows:12, 16, 9, 8, 10, 17, 10

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1. Research would like to examine the effects of humidity on eating behaviour. It is known that laboratory rats normally eat an average of µ = 21 grams of food each day. The research selects a...

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