Problem 1.Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effectof diet and exercise on blood cholesterol levels. The total cholesterol was measured in eachsubject initially and then three months after participating in an aerobic exercise program andswitching to a low-fat diet. The data are shown in the following table.Blood Cholesterol LevelSubjectBeforeAfter126522924023132562284295240251238624524172872348.313259254244102792391128324612240218132382191422522615247233Do the data support the claim that low-fat diet and aerobic exercise are of value in producinga mean reduction in blood cholesterol levels? Use a=0.05. Suppose that the hypothesesare H,: u, =0 versus H,: µ, >0, where d, = Before,-After, What is the test statistic?a.b. Calculate a one-sided confidence limit that can be used to answer the question in part (a).

Name: Problem 1.Fifteen adult males between the ages of 35 and 50 participa
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Problem 1.Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effectof diet and exercise on blood cholesterol levels. The total cholesterol was measured in eachsubject initially and then three months after parti

A paired t- test is used for the comparison of two related variables.In this test we…

Math

Statistics

Problem 1. Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effect of diet and exercise on blood cholesterol levels. The total cholesterol was measured in each subject initially and then three months after participating in an aerobic exercise program and switching to a low-fat diet. The data are shown in the following table. Blood Cholesterol Level Subject Before After 1 265 229 2 240 231 3 256 228 4 295 240 251 238 245 241 7 287 234 8 313 259 9 254 244 10 279 239 11 283 246 12 240 218 13 238 219 14 225 226 15 247 233 a. Do the data support the claim that low-fat diet and aerobic exercise are of value in producing a mean reduction in blood cholesterol levels? Use a =0.05. Suppose that the hypotheses are H,: µ, =0 versus H: µ, > 0, where d, = Before- After. What is the test statistic? %3D b. Calculatea one-sided confidence limit that can be used to answer the question in part (a).

Problem 1. Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effect of diet and exercise on blood cholesterol levels. The total cholesterol was measured in each subject initially and then three months after participating in an aerobic exercise program and switching to a low-fat diet. The data are shown in the following table. Blood Cholesterol Level Subject Before After 1 265 229 2 240 231 3 256 228 4 295 240 251 238 245 241 7 287 234 8 313 259 9 254 244 10 279 239 11 283 246 12 240 218 13 238 219 14 225 226 15 247 233 a. Do the data support the claim that low-fat diet and aerobic exercise are of value in producing a mean reduction in blood cholesterol levels? Use a =0.05. Suppose that the hypotheses are H,: µ, =0 versus H: µ, > 0, where d, = Before- After. What is the test statistic? %3D b. Calculatea one-sided confidence limit that can be used to answer the question in part (a).

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

Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 95 77 64 88 62 72 53 82 56 79 53 53 54 76 55 Female: 65 63 87 89 84 76 87 68 93 88 69 93 82 87 70 Find the means. The mean for males is beats per minute and the mean for females is beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Find the medians. The median for males is beats per minute and the median for females is beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Compare the results. Choose the correct answer below. O A. The mean and the median for males are both lower than the mean and the median for females. O B. The mean and the median for females are both lower than the mean and the median for males. O C. The mean and median appear to be roughly the same for both genders. O D. The…
Country Britain Canada China France Germany India Indonesia Ireland Israel Italy Unemployment rate 6.4 7.0 4.1 10.2 6.7 8.8 5.7 11.5 6.3 12.3 Country Japan Mexico Pakistan Philippines Poland Russia Singapore South Korea Turkey United States Unemployment rate 3.7 4.8 6.2 7.0 12.0 4.9 2.0 3.4 8.8 6.2 4. For the data in Question 3, construct a relative frequency histogram using the given classes. Use a straightedge and neatness counts.
A researcher is interested in determining if the model used for the distribution of main economic concerns in the year 2003 for residents in a certain county can still be used in the year 2004. A sample of 370 residents from that county was surveyed in 2004. The following table displays the model for the distribution of economic concerns for the year 2003 and the observed number of sampled respondents in the survey for the same economic concerns for the year 2004. Economic concern 1: Jobs 2: Medical care 4: Housing Total 3: Higher education Model from 2003 5% 36% 27% 32% 100% Counts in 2004 25 138 116 91 370 Under the null hypothesis that the model from the previous year can still be used, what is the distribution of the chi-square statistic? ○ x ²(2) O x ²(3) O x ²(4) O x²(1)
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: Female: 81 57 61 80 71 91 63 61 85 77 88 64 59 53 86 54 96 60 82 67 70 85 81 91 84 78 86 69 65 79 Find the means. The mean for males is beats per minute and the mean for females is (Type integers or decimals rounded to one decimal place as needed.) beats per minute.
Can you conclude that the proportions of people giving the various responses changed between 2015and 2016? Use the 0.01 level of significance.
Car manufacturers produced a variety of classic cars that continue to increase in value. Suppose the following data is based upon the Martin Rating System for Collectible Cars, and shows the rarity rating (1-20) and the high price ($1,000) for 15 classic cars. Model Rating Price ($1,000) A 18 1,600.0 B 17 450.0 19 3,975.0 15 77.5 18 350.0 17 140.0 16 125.0 16 250.0 14 87.0 19 1,300.0 16 375.0 19 2,650.0 13 45.0 17 375.0 18 1,000.0 00 с D E LL F G H I J L M N O
From the data given below, calculate the gross and net reproduction rates : Age Group Female Population (in thousands) Female Live-births Survival Factor 15-19 1,399 15,133 0.9694 20-24 1,422 94,155 0.9663 25-29 1,521 102,676 0.9632 30-34 1,756 72,490 0.9584 35-39 1,451 31,402 0.9519 40-44 1,689 10,640 0.9424 45-49 1,667 700 0.9279
The table below shows data from a study relating a man's age to the average number of miles he can cover on foot in one hour. Age Miles 18 5.8 25 5.5 32 5.5 39 5.2 46 4.3 53 4.2 60 3.1 67 26 74 1.8
Example 6. Draw a histogram for the following data on the size of families : No. of children : No. of families : 171 1 2 3 4 5 6 50 25 13 7 2
Q2 Fifteen adults of males between age of 35 and 50 participated in a study to evaluate the effect of diet and exercise on blood cholesterol level. The total cholesterol was measure in each subject initially and then three month after participating in aerobic exercise program and switching to low fight diet. The data are shown in the table below: Before 256 240 258 295 251 205 238 247 225 294 238 229 After 229 231 227 234 218 218 230 243 221 240 219 211 a. Do the data support the claim that low fat diet and aerobic exercises are of value in producing a mean reduction in blood cholesterol level at 5 % level of significance? (show all steps of hypothesis testing) b. Construct a one sided confidence interval that can be used to answer the question in part a. Check the results obtained in part a using R-Studio. Write your conclusion based on the p-value obtained in R studio. C.
The alcohol content of wine depends on the grape variety, the way in which the wine is produced from the grapes, the weather, and other influences. Here are data on the percent of alcohol in wine produced from the same grape variety in the same year by 16 winemakers in the same region of Italy: 12.86 12.88 12.81 12.70 12.51 12.60 12.25 12.53 13.49 12.84 12.93 13.36 13.52 13.62 12.25 13.16 Give a 95% confidence interval for the mean alcohol content of wine of this type.
For the following question, look at the table below that shows the frequency of ages in a sample: Cumulative Age in Years Frequency Percent Percent 18 5 5% 5% 20 15 15% 20% 21 13 13% 33% 22 10 10% 43% 25 25 25% 68% 28 11 11% 79% 30 12 12% 91% 32 5% 96% 35 4 4% 100% What percent of the sample is 30 years old or younger? 12% 68% 91% 11 participants