Question: A researcher would like to examine the effects of humidity on eating behaviours.  It is known that laboratory rats normally eat an average of population mean = 21 grams of food each day.  The researcher selects a random sample of n = 16 rats and places them in a controlled atmosphere room in which the relative humidity is maintained to 90%.  The daily food consumption scores for the rats are as follows:

14, 18, 21, 15, 18, 18, 21, 18

16, 20, 17, 19, 20, 17, 17, 19

1. Can the researcher conclude that humidity has a significant effect on eating behaviour? Use a two tailed test with a alpha value = .05
2. Compute the estimated d and percentage of variance accounted for by the treatment (r squared) to measure the size of the treatment effect.

Price: $2.99

Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document