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11. 45 adults used the Atkins weight loss program. After 12 months, the sample mean weight...
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.
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...
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.
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...
7. You want to estimate the mean weight loss of people one year after using a...
7. You want to estimate the mean weight loss of people one year after using a popular weight-loss (1 point) program being advertised on TV. How many people on that program must be surveyed if we want to be 95% confident that the sample mean weight loss is within 0.25 ib of the true population mean? Assume that the population standard deviation is known to be 10.6 lb. 6907 0 4865 O 84 O6906 3. Given the standard deviation of...
A clinic offers a weight loss program. The table below gives the amounts of weight loss,...
A clinic offers a weight loss program. The table below gives the amounts of weight loss, in pounds, for a random sample of 20 of its clients at the conclusion of the program. Assume that the data are normally distributed. Complete parts (a) and (b). 9 B 10 B 23 17 13 19 16 24 15 11 17 7 10 22 24 18 15 The 99% confidence interval is from a lower limit of to an upper limit of (Round...
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...
3. A sample of 20 silver dollar coins is weighed. The mean of the sample is...
3. A sample of 20 silver dollar coins is weighed. The mean of the sample is 8.0710 g and the (l point) standard deviation of the sample is 0 0411 g Construct a 95% confidence interval estimate of the mean weight of all the coins 7.6615 g H84746 g 8.0518 g< H <8.0902 g 8.0447 g<p8.0973 g 8.0329 g<p<8.1121 g 4. To determine the weight of plastic discarded by households, a sample size of 62 weights are (l point) measured...
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...
7. You want to estimate the mean weight loss of people one year after using a popular weight-loss (1 point) program being advertised on TV. How many people on that program must be surveyed if we want to be 95% confident that the sample mean weight loss is within 0.25 ib of the true population mean? Assume that the population standard deviation is known to be 10.6 lb. 6907 0 4865 O 84 O6906 3. Given the standard deviation of...
A clinic offers a weight loss program. The table below gives the amounts of weight loss, in pounds, for a random sample of 20 of its clients at the conclusion of the program. Assume that the data are normally distributed. Complete parts (a) and (b). 9 B 10 B 23 17 13 19 16 24 15 11 17 7 10 22 24 18 15 The 99% confidence interval is from a lower limit of to an upper limit of (Round...
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...
3. A sample of 20 silver dollar coins is weighed. The mean of the sample is 8.0710 g and the (l point) standard deviation of the sample is 0 0411 g Construct a 95% confidence interval estimate of the mean weight of all the coins 7.6615 g H84746 g 8.0518 g< H <8.0902 g 8.0447 g<p8.0973 g 8.0329 g<p<8.1121 g 4. To determine the weight of plastic discarded by households, a sample size of 62 weights are (l point) measured...
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