Using the data from Exercise 9.46 on dancers’ heights, find a 95% confidence interval for the mean height. Also, if you had used a two-sided alternative (Instead of the one-sided alternative used in Exercise 9.46) and had done a test with a significance level of 0.05, would you have rejected a hypothesized mean of 64.5 inches?
Answer to relevant QuestionsTen people went on a Atkins diet for a month. The weight losses experienced (in pounds) were 3, 8, 10, 0, 4, 6, 6, 4, 2, and -2 The negative weight loss is a weight gain. Test the hypothesis that the mean weight loss was ...The table shows the Minitab output for a two-sample t-test for the number of televisions owned in households of random samples of students at two different community colleges. Each individual was randomly chosen ...A random sample of male college baseball players and a random sample of male college soccer players were obtained independently and weighed. The table shows the unstacked weights (in pounds). The distributions of both data ...The birth weights of 35 babies whose mothers did not smoke and 22 babies whose mothers smoked were compared; weights were in grams. (Source: Smoking Mothers, Holcomb 2006, accessed via StatCrunch. Owner: kupresanin99) Test ...A McDonald's fact sheet says their cones should weigh 3.18 ounces (converted from grams). Suppose you take a random sample of four cones, and the weights are 4.2, 3.4, 3.9, and 4.4 ounces. Assume that the population ...
Post your question