### 7.71 Comparison of Dietary Composition**Context**: This section refers to Example 7.15 (page 443) and addresses the dietary composition of the main meal among two groups of eaters, categorized as early eaters and late eaters. A study was conducted to analyze the total fats, protein, and carbohydrates intake from the main meal in grams (g) for each group.#### Data Summary:- **Early Eaters (n = 202)** - **Fats**: Mean (\(\bar{x}\)) = 23.1 g, Standard Deviation (s) = 12.5 g - **Protein**: Mean (\(\bar{x}\)) = 27.6 g, Standard Deviation (s) = 8.6 g - **Carbohydrates**: Mean (\(\bar{x}\)) = 64.1 g, Standard Deviation (s) = 21.0 g - **Late Eaters (n = 200)** - **Fats**: Mean (\(\bar{x}\)) = 21.4 g, Standard Deviation (s) = 8.2 g - **Protein**: Mean (\(\bar{x}\)) = 25.7 g, Standard Deviation (s) = 6.8 g - **Carbohydrates**: Mean (\(\bar{x}\)) = 63.5 g, Standard Deviation (s) = 20.8 g#### Figures:The table provides a comparative summary of dietary intake in terms of fats, protein, and carbohydrates for early eaters and late eaters, indicating the central tendency and variability within each group.#### Tasks:(b) **Hypothesis Description**: - Formulate null and alternative hypotheses focused on the comparison of fat consumption between early eaters and late eaters.(c) **Significance Test**: - Conduct a significance test with a significance level (\(\alpha\)) of 0.05. Calculate and interpret the test statistic, degrees of freedom, and P-value. Summarize the findings.(d) **Confidence Interval**: - Determine a 95% confidence interval for the difference between the means of the two groups. Compare these results with the findings from the significance test.This text aims to facilitate an educational exploration of dietary intake differences between two study groups, focusing on hypothesis testing, statistical

Answered: Image /qna-images/answer/2c2ac5ae-5a7e-4fa0-bee8-c1b77b55d6cb.jpg

Answered: 7.71 Comparison of dietary composition.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Department of Research and Development of Unilever Sdn Bhd has conducted a study to improve the quality of production line by measured the weight (in ounces) of 50 bars of soap. The results are as shown in Table 2(b). Table 2(b) Weight of soap 11 12 12 12 13 13 13 13 13 14 14 14 14 14 15 15 15 15 15 15 15 15 15 16 16 16 16 16 16 16 16 16 17 17 17 17 17 17 17 17 17 18 18 18 18 18 18 18 19 20 (1) Calculate the mean, standard deviation and variance. (ii) By using 6 of class interval, construct a histogram for this data.
Are the average number of times a month an adult eats out the same for all age groups? Use the data below to determine if they are all the same. 44-56 7 18-30 31-43 6 4 8 1 3 2 5 5 4 2 4 6 6 Assume all requirements are met. Run the test at a .10 level. 57-69 8 3517
A certain reducing weight program has produced the following weight (lbs.) changes in ten students. Use 0.05 level of significance to test if the diet is effective in reducing weight. Before 124 138 113 129 149 149 177 138 139 129 After 105 115 110 110 131 122 155 125 142 122
S An employee at Coconino Community College (CCC) is evaluated based on goal setting and accomplishments toward the goals, job effectiveness, competencies, and CCC core values. The categories, ratings, and weights for a particular employee are shown in this table. Weight % 2 Category Competency 1 Competency 2 Competency 3 Competency 4 Competency 5 Goal 1 Goal 2 Job Effectiveness Core Values Rating 3 2 4 2 4 4 4 3 2 433 3 20 2282 22 20 23 Compute a weighted average score for this employee. Round your answers to two decimal places. Average score for this employee:
Consider the below data: 62 / 78 / 84 / 62 / 72 / 78 / 54 /60 /78 / 80 The mode is: A. 54 B.80 C.62 D.78
A psychologist believed that as children get older, they engage in more “inactive activities” such as playing computer games, watching TV and surfing the internet. She collected data from 10 children. She recorded the age of each child and the amount of activity (in hours) the child engaged in per week. Age Activity 7 4.3 9 3.2 10 1 13 1.5 12 1.2 15 0.8 9 3 12 4 15 1.5 14 1.9 Using excel, obtain a scatterplot of the data. Discuss the relationship between age and activity based on the scatterplot. Using excel, obtain the simple linear regression linear regression line predicting activity from age. Interpret the intercept and slope of the regression line. By hand, predict the amount of activity for age = 14. By hand, calculate the residual for age = 14 Using excel output, test the null hypothesis that the slope coefficient is zero using the p-value approach. Write one sentence interpreting the meaning of this result. Make sure to report the test statistic…
Construct a sub divided bar diagram
Rock sole in the Bering Sea 1/2: "Recruitment," the addition of new members to a fish population, is an important measure of the health of ocean ecosystems. Here are data on the recruitment of rock sole in the Bering Sea from 1973 to 2000: Make a stemplot to display the distribution of yearly rock sole recruitment. Round to the nearest hundred (for example, 173 to 2 hundred, and 1702 to 17 hundred) and split the stems.
5. 200 180 160 140 120 Cumulative frequency 100 (sh) 80 60 A 40 20 0 0 10 20 ii) the upper quartile 40 30 50 Number of hours worked (h) iii) the inter-quartile range 60 70 200 people record the number of hours they work in a week. The cumulative frequency graph shows this information. a) Use the graph to find: i) the median 80 iv) the number of people who work more than 60 hours in a week
Give the statistical meaning of the relationship between the spending hours on using mobile andreading books per day.
Q1) Case Study A survey was conducted to research the question whether more home runs are hit by players in the National League or by players in the American League. A Researcher decide to use the home run leaders from each league for a 40-year period as data. The numbers are shown. [6] National League 47 49 73 38 50 40 65 47 70 49 47 40 43 36 46 35 39 49 37 37 40 37 31 48 48 45 52 38 38 52 36 44 40 48 45 45 36 39 44 47 American League 47 57 52 47 48 56 56 52 50 40 46 43 39 44 51 36 42 49 49 40 43 32 39 22 41 45 46 39 32 36 32 32 37 33 44 49 44 44 49 32 (i) Define a population (ii) what kind of sample was used (iii) do you feel that it is representative (iv) what are your hypotheses? (v) what significance level will you use? (vi) what statistical test will you use? (vii) what are the results? (Assume sigma1 = 8.8 and sigma2=7.8) (viii) 95% CI? (ix) Decision (x) Conclusion (xi) Do you feel that using the data given really answers the original question asked? (xii) what other data might…

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS