Mathematics, 27.02.2020 23:49 jadenweisman1
Applying a Level of Significance In this activity, you’ll study the data from two experiments. For each data set, you will determine whether the difference of means between the treatment group and the control group is statistically significant and interpret the result in the context of the situation.
The results showed that the mean change in the amount of weight lost by the treatment group is 8 points more than that of the control group. To test whether the results could be explained by random chance, researchers created a table that summarizes the results of 1,000 re-randomizations of the data with differences of means rounded to the nearest 2 points.
Consider the significance level to be set at 5%, so results less than 5% can be considered statistically significant.
Treatment Group Mean − Control Group Mean Frequency
-12 1
-10 10
-8 28
-6 58
-4 125
-2 184
0 201
2 186
4 114
6 57
8 26
10 8
12 2
Part A
Determine the probability of the treatment group’s mean being greater than the control group’s mean by 8 points or more.
Part B
Is the result statistically significant? Explain your answer.
Part C
What does your answer mean in the context of drinking protein shakes while on a weight-loss program?
Answers: 1
Mathematics, 21.06.2019 18:30, andrewmena05
Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?
Answers: 2
Mathematics, 21.06.2019 19:30, shavonfriend27
Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row
Answers: 3
Applying a Level of Significance In this activity, you’ll study the data from two experiments. For e...
Biology, 20.08.2019 23:10
Biology, 20.08.2019 23:10
Mathematics, 20.08.2019 23:10
Mathematics, 20.08.2019 23:10
History, 20.08.2019 23:10
Mathematics, 20.08.2019 23:10
Mathematics, 20.08.2019 23:10