a dietician wants to see if there is any difference in the effectiveness of three diets....
a dietician wants to see if there is any difference in the effectiveness of three diets. eighteen people, comprising a sample, were randomly assigned to three diets. below you are given the total amount of weight lost in a month by each person. Diet A 14,18,20,12,20,18 Diet B 12, 10,22,12,16,12 Diet C 25, 32, 18,14,17, 14. using the excel anova table and at a 1% significance, test to see if there is a significant difference in the average effectiveness of the three diets. Use the pvalue approach
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a dietician wants to see if there is any difference in the
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ECON 3789 Assignment 2 Name: 4. Diets. A dietician wants to see if there is any...
ECON 3789 Assignment 2 Name: 4. Diets. A dietician wants to see if there is any difference in the effectiveness of three diets. Eighteen people were randomly chosen for the test. Then each individual was randomly assigned to one of the three diets The data in the Assignment 2 Excel data file under the Diets tab give the total amount of weight losts in six months by each person. Use a 0s level of significance to conduct the hypothesis test...
The NIH wants to compare the mean weight loss for five different diets. They measure the...
The NIH wants to compare the mean weight loss for five different diets. They measure the weight loss (in pounds) of 5 men F25 assigned to each of the diets for one month. The resulting data set is below. Use this file: Assignment 9q3 data FOR R a) Which of the following is NOT an assumption that should be checked before performing an ANOVA? 1 Pounds Diet 1.7 0.7 0.8 0.6 0.1 1.2 1.6 1.5 . The average weight loss...
An employment agency wants to see which of three types of ads in the help-wanted section...
An employment agency wants to see which of three types of ads in the help-wanted section of local newspapers is the most effective. Three types of ads (big headlines, straightforward, and bold print) were randomly alternated over a period of weeks, and the number of people responding to the ads was noted each week. Type of Advertisement Big Headline Straightforward Bold Print Number of responses (replicates) 26 24 33 30 24 28 45 31 34 35 25 42 40 22...
An employment agency wants to see which of three types of ads in the help-wanted section...
An employment agency wants to see which of three types of ads in the help-wanted section of local newspapers is the most effective. Three types of ads (big headlines, straightforward, and bold print) were randomly alternated over a period of weeks, and the number of people responding to the ads was noted each week. Type of Advertisement Big Headline Straightforward Bold Print Number of responses (replicates) 38 20 34 46 23 32 39 27 31 42 28 32 32 22...
Want to know the steps for these questions, please? A dietitian wanted to test three different diets to find out whether or not the mean weight loss for each of these diets is the same. He randomly selected 15 overweight persons, randomly divided them int
Want to know the steps for these questions, please?Use the following information for questions 33 – 42.A dietitian wanted to test three different diets to find out whether or not the mean weight loss for each of these diets is the same. He randomly selected 15 overweight persons, randomly divided them into three groups, and put each group on one of the three diets. The table shown below records the weights lost by these persons after being on these diets...
In Problem 6 you found a confidence interval for the difference from previously gathered data. In...
In Problem 6 you found a confidence interval for the difference from previously gathered data. In this problem you want to set the sample size for the two groups before conducting the study This will often be the case for clinical data where you want to make sure that, if a particular difference in two groups of the amount or level of a substance exists, your test will come back saying that such a difference exists. In other words, you...
An instructor in a statistics class wants to evaluate the effectiveness of three teaching assistants using...
An instructor in a statistics class wants to evaluate the effectiveness of three teaching assistants using different instructional methods (1: small group work, 2: lecture, and 3: individual work with TA help). For one class session, the students are equally and randomly assigned into one of the three groups, each of which receives a lecture on “ANOVA” from one of the teaching assistants. At the next meeting of the class, the students are given a quiz on the material. To...
Researchers randomly assigned 322 moderately obese volunteers to one of three diets to study how ...
Researchers randomly assigned 322 moderately obese volunteers to one of three diets to study how the diets compare with respect to various outcomes such as weight loss, lipid profiles, blood pressure, and other indicators of health and metabolic function. The three diets included a low-carbohydrate diet, a low-fat diet, and a Mediterranean diet that consists of moderate fat and a high proportion of monounsaturated fats. All study participants worked at the same research center in Israel, where lunch (the main...
8) The F value for 6 degrees of freedom for the numerator, 24 degrees of freedom...
8) The F value for 6 degrees of freedom for the numerator, 24 degrees of freedom for the denominator, and a 0.05 area in the right tail is: a. 2.60 Ob.2.51 O c. 2.78 O d. Cannot answer from given information. QUESTION 9 9) A researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for six...
An employment agency wants to see which of three types of ads in the help-wanted section...
An employment agency wants to see which of three types of ads in the help-wanted section of local newspapers is the most effective. Three types of ads (big headlines, straightforward, and bold print) were randomly alternated over a period of weeks, and the number of people responding to the ads was noted each week. Type of Advertisement Big Headline Straightforward Bold Print Number of responses (replicates) 34 31 33 43 23 29 23 24 38 37 28...
ECON 3789 Assignment 2 Name: 4. Diets. A dietician wants to see if there is any difference in the effectiveness of three diets. Eighteen people were randomly chosen for the test. Then each individual was randomly assigned to one of the three diets The data in the Assignment 2 Excel data file under the Diets tab give the total amount of weight losts in six months by each person. Use a 0s level of significance to conduct the hypothesis test...
The NIH wants to compare the mean weight loss for five different diets. They measure the weight loss (in pounds) of 5 men F25 assigned to each of the diets for one month. The resulting data set is below. Use this file: Assignment 9q3 data FOR R a) Which of the following is NOT an assumption that should be checked before performing an ANOVA? 1 Pounds Diet 1.7 0.7 0.8 0.6 0.1 1.2 1.6 1.5 . The average weight loss...
In Problem 6 you found a confidence interval for the difference from previously gathered data. In this problem you want to set the sample size for the two groups before conducting the study This will often be the case for clinical data where you want to make sure that, if a particular difference in two groups of the amount or level of a substance exists, your test will come back saying that such a difference exists. In other words, you...
Researchers randomly assigned 322 moderately obese volunteers to one of three diets to study how the diets compare with respect to various outcomes such as weight loss, lipid profiles, blood pressure, and other indicators of health and metabolic function. The three diets included a low-carbohydrate diet, a low-fat diet, and a Mediterranean diet that consists of moderate fat and a high proportion of monounsaturated fats. All study participants worked at the same research center in Israel, where lunch (the main...
8) The F value for 6 degrees of freedom for the numerator, 24 degrees of freedom for the denominator, and a 0.05 area in the right tail is: a. 2.60 Ob.2.51 O c. 2.78 O d. Cannot answer from given information. QUESTION 9 9) A researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for six...
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