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Mathematics, 06.12.2019 05:31 kebo63
Aconsumer advocate agency is concerned about reported failures of two brands of mp3 players, which we will label brand a and brand b. in a random sample of 197 brand a players, 33 units failed within 1 year of purchase. of the 290 brand b players, 25 units were reported to have failed within the first year following purchase. the agency is interested in the difference between the population proportions, , for the two brands. what is the 99% confidence interval estimate of the true difference, ?
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Aconsumer advocate agency is concerned about reported failures of two brands of mp3 players, which w...
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