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Mathematics, 20.07.2019 01:20, Jasten
Several years ago, the mean height of women 20 years of age or older was 63.7 inches. suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 65.1 inches. (a) state the appropriate null and alternative hypotheses to assess whether women are taller today. (b) suppose the p-value for this test is 0.16. explain what this value represents. (c) write a conclusion for this hypothesis test assuming an alphaequals0.10 level of significance.
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Mathematics, 21.06.2019 21:40, dededese2403
Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0
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Several years ago, the mean height of women 20 years of age or older was 63.7 inches. suppose that a...
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