In a test of weights loss programs, 30 adults uses the Atkins program. After 6 months,...
In a test of weights loss programs, 30 adults uses the Atkins program. After 6 months, their mean weight loss was found to be 2.1 lb with a standard deviation of 4.8 lb. Constrcut a 90% confidence interval estimate of the true mean weight loss for all such subjects. Show your work/ calculations.
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In a test of weights loss programs, 30 adults uses the Atkins
program. After 6 months,...
11. 45 adults used the Atkins weight loss program. After 12 months, the sample mean weight...
11. 45 adults used the Atkins weight loss program. After 12 months, the sample mean weight loss was found to be 2.1 lb, with a population standard deviation of 4.8 lb. Construct a 90% confidence interval to estimate the mean weight loss for all such subjects. a) Find the margin of error, E. b) What is the Confidence Interval? c) Interpret the confidence interval.
please show all work Question 9 (13 points) In a test of weight loss programs, 40...
please show all work
Question 9 (13 points) In a test of weight loss programs, 40 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.1 lb, with a standard deviation of 4.8 lb. Answer the questions to construct and interpret a 90% confidence interval for the true mean weight loss for all adults who used the Atkins weight loss program. a. (1 pt.) What parameter are you estimating? (p or...
Question 3 4 pts In a test of weight loss programs, 44 adults used the Atkins...
Question 3 4 pts In a test of weight loss programs, 44 adults used the Atkins weight loss program. After 12 months, their mean weight loss was determined to be 2.4 lbs., with a variance of 23.6 1b2. Assuming the sample is a simple random sample obtained from a population with a normal distribution, construct a 95% confidence interval estimate of the standard deviation of the weight loss for all such subjects. Keep your numerical answers rounded to 3 decimal...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches has a mean of $416,953 with standard deviation $462,364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach. 2. In a test of weight loss programs, 27 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.4 lb, with a standard deviation of 4.7 lb. Construct a 90% confidence...
Please break EVERYTHING down as to how you came to the answer. Please be neat while...
Please break EVERYTHING down as to how you came to the answer.
Please be neat while writing it down. If a graph or chart is
needed, please indicate which chart and where to look, etc.
Thank you so so much! :)
Part 3: Confidence intervals. 1. In a test of weight loss programs, 90 adults used the Atkins weight loss program. After 6 months, their mean weight loss was found to be 3.1 pounds with a standard deviation of 5.2...
After going through a weight loss program, 100 adults had a mean weight loss of 10...
After going through a weight loss program, 100 adults had a mean weight loss of 10 lb with a standard deviation of 25 lbs. Find the 99% confidence interval of the mean. Does the program appear to be effective? Round to 3 decimal places.
1. You want to estimate the mean weightloss of people one year after using the Atkins...
1. You want to estimate the mean weightloss of people one year after using the Atkins diet. How many dieters must be surveyed if we want to be 95% confident that the sample mean weight loss is within 25 lb of the true population mean? Assume that the population standard deviation is known to be 10.6 11b
1. In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects...
1. In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture. The numbers of migraine attacks for the treatment group had a mean of 1.8 and a standard deviation of 1.4. Construct a 95% confidence interval estimate of (I potnt) number of migraine attacks for all people treated with acupuncture. 0 1.7 <u<1.9 O 1.5 <A<2.1 1.3 < μ <2.3 2. A sample size of n 20 is a simple random...
A group of 78 people enrolled in a weight-loss program that involved adhering to a special...
A group of 78 people enrolled in a weight-loss program that involved adhering to a special diet and to a daily exercise program. After six months, their mean weight loss was 25 pounds, with a sample standard deviation of 9 pounds. A second group of 43 went on the special diet, but did not exercise. After six months, their mean weight loss was 14 pounds, with a sample standard deviation of 7 pounds. a. What function would be used to...
Does this diet help? A group of 78 people enrolled in a weight loss program that...
Does this diet help? A group of 78 people enrolled in a weight loss program that involved adhering to a special diet and to a daily exercise program. After six months, their mean weight loss was 27 pounds, with a sample standard deviation of 10 pounds. A second group of 43 people went on the diet but didn't exercise. After six months, their mean weight loss was 15 pounds, with a sample standard deviation of 8 pounds. Construct a 99.9%...
11. 45 adults used the Atkins weight loss program. After 12 months, the sample mean weight loss was found to be 2.1 lb, with a population standard deviation of 4.8 lb. Construct a 90% confidence interval to estimate the mean weight loss for all such subjects. a) Find the margin of error, E. b) What is the Confidence Interval? c) Interpret the confidence interval.
please show all work
Question 9 (13 points) In a test of weight loss programs, 40 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.1 lb, with a standard deviation of 4.8 lb. Answer the questions to construct and interpret a 90% confidence interval for the true mean weight loss for all adults who used the Atkins weight loss program. a. (1 pt.) What parameter are you estimating? (p or...
Question 3 4 pts In a test of weight loss programs, 44 adults used the Atkins weight loss program. After 12 months, their mean weight loss was determined to be 2.4 lbs., with a variance of 23.6 1b2. Assuming the sample is a simple random sample obtained from a population with a normal distribution, construct a 95% confidence interval estimate of the standard deviation of the weight loss for all such subjects. Keep your numerical answers rounded to 3 decimal...
SECTION 7 - 2 1. A simple random sample of 39 salaries of NCAA football coaches has a mean of $416,953 with standard deviation $462,364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach. 2. In a test of weight loss programs, 27 adults used the Atkins weight loss program. After 12 months, their mean weight loss was found to be 2.4 lb, with a standard deviation of 4.7 lb. Construct a 90% confidence...
Please break EVERYTHING down as to how you came to the answer.
Please be neat while writing it down. If a graph or chart is
needed, please indicate which chart and where to look, etc.
Thank you so so much! :)
Part 3: Confidence intervals. 1. In a test of weight loss programs, 90 adults used the Atkins weight loss program. After 6 months, their mean weight loss was found to be 3.1 pounds with a standard deviation of 5.2...
1. You want to estimate the mean weightloss of people one year after using the Atkins diet. How many dieters must be surveyed if we want to be 95% confident that the sample mean weight loss is within 25 lb of the true population mean? Assume that the population standard deviation is known to be 10.6 11b
1. In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture. The numbers of migraine attacks for the treatment group had a mean of 1.8 and a standard deviation of 1.4. Construct a 95% confidence interval estimate of (I potnt) number of migraine attacks for all people treated with acupuncture. 0 1.7 <u<1.9 O 1.5 <A<2.1 1.3 < μ <2.3 2. A sample size of n 20 is a simple random...
A group of 78 people enrolled in a weight-loss program that involved adhering to a special diet and to a daily exercise program. After six months, their mean weight loss was 25 pounds, with a sample standard deviation of 9 pounds. A second group of 43 went on the special diet, but did not exercise. After six months, their mean weight loss was 14 pounds, with a sample standard deviation of 7 pounds. a. What function would be used to...
Does this diet help? A group of 78 people enrolled in a weight loss program that involved adhering to a special diet and to a daily exercise program. After six months, their mean weight loss was 27 pounds, with a sample standard deviation of 10 pounds. A second group of 43 people went on the diet but didn't exercise. After six months, their mean weight loss was 15 pounds, with a sample standard deviation of 8 pounds. Construct a 99.9%...
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