Mathematics, 07.03.2020 04:37 hewonabi123
An experiment was designed to see whether laboratory rats would, on average, eat more when confined to a crowded cage or an uncrowded one. To minimize the effect of genetic differences, two rats were chosen from each of 30 litters. One of each pair of rats was randomly assigned to a crowded cage, the other rat to an uncrowded cage. The data to be collected were the 30 differences in the amount of food consumed between the "crowded" and the "uncrowded" rat from each litter.
What is the natural null hypothesis for this experiment?
?If so, which direction should be chosen?
Answers: 1
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