Mathematics, 23.04.2021 16:20, genyjoannerubiera
A medical researcher wishes to investigate the effectiveness of exercise versus diet in losing
weight. Two groups of 25 overweight adult subjects are used, with a subject in each group matched
to a similar subject in the other group on the basis of a number of physiological variables. One of
the groups is placed on a regular program of vigorous exercise but with no restriction on diet, and
the other is placed on a strict diet but with no requirement to exercise. The weight losses after 20
weeks are determined for each subject, and the difference between matched pairs of subjects
(weight loss of subject in exercise group - weight loss of matched subject in diet group) is
computed. The mean of these differences in weight loss is found to be - 2 lb with standard
deviation s = 4 lb. Is this evidence of a difference in mean weight loss for the two methods? To
answer this question, you should use
(a) one-proportion z test
(b) one-sample i test
(c) one-sample z test
(d) one-proportion z interval
(e) one-sample t interval
Answers: 1
Mathematics, 21.06.2019 18:00, Tellyy8104
On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.
Answers: 2
Mathematics, 21.06.2019 18:00, amyrose90999
Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?
Answers: 2
Mathematics, 21.06.2019 18:20, vic2nvsty
Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.
Answers: 3
A medical researcher wishes to investigate the effectiveness of exercise versus diet in losing
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