The students in a weight-loss aerobics class have been weighed both before andafter the 5-week class, with the following results:WeightBeforeWeightAfterPersonNumber1198 lb194 lb21541513124126411010412712316215571411298180165Using the 0.05 level of significance, evaluate the effectiveness of the program. UseDependent Samples T-Test.

The Dependent samples T - test (or) Paired samples T - test should be used, When we are going to…

Answered: The students in a weight-loss aerobics…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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According to a Yankelovich poll, women spend an average of 19.1 hours shopping during the month of December, compared to 12.7 hours for men. as in the table below contains the survey data underlying these results, use the 0.01 level in examining whether the sample mean for women is significantly higher than that for men. find the p-value for the test. women men 13,9 11,9 27,6 15,9 11,6 17,9 21,0 12,6 20,9 12,1 20,3 10,5 9,7 11,9 15,6 16,5 22,5 11,2 26,4 5,3 17,0 14,4 23,2 16,3 13,1 10,8 22,1 10,5 21,6
Find the value of a, b, ..., f in the one-way ANOVA table below. SS df MS F Source 361.5 b 60.25 f Treatment a 21 d Error 821.7 e Total
If you have a study design that requires two different samples, what sort of test might you consider? Matched samples test Independent samples test
Think about doing an Independent-Measures ANOVA, Step 3. If the data are as follows, find the SS-between. GROUP 1 GROUP 2 GROUP 3 1 3 5 3 2 7 2 4 6 A) SS-between = 26.00 B) SS-between = 42.00 C) SS-between = 6.00 D) SS-between = 13.00
Weights (kg) of poplar trees were obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the accompanying table. Use a 0.05 significance level to test the claim that the four treatment categories yield poplar trees with the same mean weight. Is there a treatment that appears to be most effective? LOADING... Click the icon to view the data table of the poplar weights. No Treatment Fertilizer Irrigation Fertilizer and Irrigation 1.24 0.99 0.09 0.93 0.65 0.94 0.63 1.41 0.41 0.55 0.13 1.06 0.15 0.51 0.88 1.49 1.31 1.01 0.84 Determine the null and alternative hypotheses. H0: ▼ mu 1 greater than mu 2 greater than mu 3 greater than mu 4μ1>μ2>μ3>μ4 Exactly two of the population means are equal.Exactly two of the population means are equal. Not all of the population means are equal.Not all of the population means…
Find the test statistic and p value
The midterm exam grades of an engineering course were used to create the following stem and leaf plot. What is the third quartile of these scores? A. 52 | Stem-and-leaf of grades N = 40 Leaf Unit = 1.0 B. 73 C. 86 25 D. 93 4 5 26 6. 1359 7 00338 8 01122335789 9 00111233445677899
Applying the Concepts and SkillsIn Exercises, use the technology of your choice toa. conduct a Kruskal–Wallis test on the data at the specified significance level.b. interpret your results from part (a). Note: All data sets are on the WeissStats site.Ground Water. The data from Exercise on the concentrations, in milligrams per liter, of each of four chemicals among three different wells. Use a 1% significance level.In Exercises, use the technology of your choice toa. conduct a one-way ANOVA test on the data.b. interpret your results from part (a).c. decide whether presuming that the assumptions of normal populations and equal population standard deviations are met is reasonable.Ground Water. The U.S. Geological Survey, in cooperation with the Florida Department of Environmental Protection, investigated the effects of waste disposal practices on ground water quality at five poultry farms in north-central Florida. At one site, they drilled four monitoring wells, numbered 1, 2, 3, and 4.…
Which of the following research scenarios uses a two samples independent-measures t test? a. Examine the difference in self-esteem between student athletes and non-athletes. b. Evaluate the effectiveness of a pain reliever by measuring how much pain is reduced after taking the medication in a single group of people who rated pain, then took the drug and rated pain a second time. c. Test the effectiveness of a cholesterol medication by comparing cholesterol levels before and after the medication is administered to a single group. d. Calculating the z score for the highest X in the data set.
Three brands of reducing pill were tried on a sample of 8 female adults. The data are given on the following table in terms of weight loss in pounds. Reducing Pll Used B Respondent A 4.5 3.2 3.0 2 4.1 3.0 2.8 3 3.6 38 3.2 4 53 3.9 3.6 4.8 4.2 3.5 27 3.1 3.5 43 4.0 29 3.8 3.3 36 Test the bypothesis that there is no signilicant difference in the average weight loss in pounds among the three groups of respondents using the three brands of reducing pills at 0.01 level
Think about doing an Independent-Measures ANOVA, Step 3. If the data are as follows, find the SS-between. GROUP 1 GROUP 2 GROUP 3 1 3 5 3 2 7 2 4 6 Group of answer choices SS-between = 6.00 SS-between = 13.00 SS-between = 26.00 SS-between = 42.00
Sample(Prefers) 7. 6 5 3. 2. -1 -0.5 0 0.5 1.5 Sample(IAT-Weight-Score) A. Do the boxplots suggest that the samples come from populations with different means? Briefly explain.

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