Question

Here is a collection of exercises which are not tied to the individual chapters.
Exercise 1 A professional cat-breeder has written to you. She is proposing to do an experi-ment next spring. Her letter asks for an appointment to discuss details of the experiment with you. Part of her letter reads as follows. In the past I have always fed newly-weaned kittens on a diet which I cook and prepare myself. However, there are some good commercial cat-foods on the market now, and I wonder if I could save myself the trouble of preparing a special diet. Three of the new cat-foods—Purrfect, Qualicat and Rumpuss—seem partic-ularly attractive. I should like to do an experiment to compare these three, to see which produces the healthiest kittens. My mature cats always produce four or five kittens in a litter. If I use the kit-tens from three mother cats I shall therefore have at least twelve kittens available for the experiment. Will this be enough?
Make clear notes on the most important points to discuss with her at your meeting. Explain the statistical motives for discussing these points.​

Answer 1

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