Question

A nationwide study a few years ago showed that American women, ages 19-30, consume an average of 110 milligrams of caffeine per day. Recently a group of Stats students decided to test whether the average was more than that now. They obtained a random sample of 25 American women, ages 19-30, whose average daily consumption was 115 milligrams of caffeine per day. The standard deviation was s = 14, and a histogram was unimodal and nearly symmetric with no outliers. Perform a hypothesis test using 0.05 as the significance level. Check conditions after writing your hypotheses, show all calculations, and interpret your results in context at the end.

Please help me with the conditions also. Thanks

Answer 1

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