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Mathematics, 23.03.2020 23:10 bwelsh880

The Weight of Rats You wish to estimate the average weight of a pet rat. You obtain 40 rats (eas- ily and cheaply done; keep them, because they make excellent pets), sampled uniformly at random and with replacement from the pet rat population. The mean weight is 340 grams, with a standard deviation of 75 grams.

(a) Give a 68% confidence interval for the weight of a pet rat, from this data.
(b) Give a 99% confidence interval for the weight of a pet rat, from this data.

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