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13. When 40 people used the Weight Watchers diet for one year, their mean weight loss...
When 40 people use the Weight Watchers diet for one year, their mean weight loss was...
When 40 people use the Weight Watchers diet for one year, their mean weight loss was 3.0 pounds. Historically the standard deviation is σ = 4.9 pounds (based on data from “Comparison of the Atkins, Ornish, Weight Watchers, and Zone Diets for Weight Loss and Heart Disease Reduction,” by Dansinger, et al., Journal of the American Medical Association, Vol. 293, No. 1). Use a 0.01 significance level to test the claim that the mean weight loss is greater than 0....
Find the null hypothesis and alternate hypothesis.
When 50 people used the Weight Watchers diet for one year, their mean weight loss was 3.0 lb and standard deviation was 4.9lb. Assume that the population standard deviation is 5.0 lb. Use a 0.01 significance level to test the claim that the mean weight loss is greater than 1.5.Find the null hypothesis and alternate hypothesis.H0: [ Select ] ["p", "mu"] ...
1. Weight Watchers claims that people following their program can expect to lose more than 10 lbs in 2 months with a standard deviation of 1.3 lbs. Researchers selected a group of 50 people participat...
1. Weight Watchers claims that people following their program can expect to lose more than 10 lbs in 2 months with a standard deviation of 1.3 lbs. Researchers selected a group of 50 people participating in the program and monitored their weight loss over 2 months. The mean weight loss over the 2 months was 10.4 lbs. We want to know if this result supports Weight Watchers’ claim. a. Draw a normal curve for the sampling distribution of samples of...
In a test of weight loss programs, 120 subjects were divided such that 40 subjects followed...
In a test of weight loss programs, 120 subjects were divided such that 40 subjects followed each of 3 diets. Each was weighed a year after starting the diet and the results are in the ANOVA table below. Use a 0.05 significance level to test the claim that the mean weight loss is the same for the different diets. Source of Variation SS df MS F P-value Fcrit Between Groups 91.990 2 45.99487 1.3743 0.257070 3.073763 Within Groups 3915.738 117...
Twenty randomly selected cats mean weight is 12.5 lb with a standard deviation of 3.7 lb....
Twenty randomly selected cats mean weight is 12.5 lb with a standard deviation of 3.7 lb. At the 0.05 level of significance, test the claim that the mean weight for all such cats is greater than 13.7 lb... What are the steps to do it on statcrunch?
The water diet requires one to drink two cups of water every half hour from when...
The water diet requires one to drink two cups of water every half hour from when one gets up until one goes to bed, but otherwise allows one to eat whatever one likes. Four adult volunteers agree to test the diet. They are weighed prior to the diet and after six weeks on the diet. The weights (in pounds) are as follows: ovoce Person 1 2 3 4 Weight before the diet|180125240150 Weight after six weeks 170 130215 152 Difference...
Diet Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular versi...
Diet Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. 25 0.78225 lb 0.00449 lb 0.80137 lb 0.00744 lb...
Data on the weights (lb) of the contents of cans of diet soda versus the contents...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete the parts below. Use a 0.05 significance level Test the claim that the contents of cans ol Giet seda have weights with a...
Score: vor 12.1.5 Question Help In a test of weight loss programs, 111 subjects were divided...
Score: vor 12.1.5 Question Help In a test of weight loss programs, 111 subjects were divided such that 37 subjects followed ench of 3 diets. Each was weighed a year after starting the diet and the results are in the ANOVA table below. Use a 0.025 significance level to test the claim that the mean weight loss is the same for the different diets. Source of Variation SS df MS F P-value Forff Between Groups 202.462 2 101 23117 3.2046...
Exercise 10-31 Algo A diet center claims that it has the most effective weight loss program in the region. Its ad...
Exercise 10-31 Algo A diet center claims that it has the most effective weight loss program in the region. Its advertise program lose more than 1 pounds within a month." Six clients of this program are weighed on the month later. Let the difference be defined as Weight on First Day of Diet minus Weight One Mont reference the appropriete table: z table or t table) Weight on First Day of Weight One client Diet Month Later 1 156 165...
In a test of weight loss programs, 120 subjects were divided such that 40 subjects followed each of 3 diets. Each was weighed a year after starting the diet and the results are in the ANOVA table below. Use a 0.05 significance level to test the claim that the mean weight loss is the same for the different diets. Source of Variation SS df MS F P-value Fcrit Between Groups 91.990 2 45.99487 1.3743 0.257070 3.073763 Within Groups 3915.738 117...
The water diet requires one to drink two cups of water every half hour from when one gets up until one goes to bed, but otherwise allows one to eat whatever one likes. Four adult volunteers agree to test the diet. They are weighed prior to the diet and after six weeks on the diet. The weights (in pounds) are as follows: ovoce Person 1 2 3 4 Weight before the diet|180125240150 Weight after six weeks 170 130215 152 Difference...
Diet Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. 25 0.78225 lb 0.00449 lb 0.80137 lb 0.00744 lb...
Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete the parts below. Use a 0.05 significance level Test the claim that the contents of cans ol Giet seda have weights with a...
Score: vor 12.1.5 Question Help In a test of weight loss programs, 111 subjects were divided such that 37 subjects followed ench of 3 diets. Each was weighed a year after starting the diet and the results are in the ANOVA table below. Use a 0.025 significance level to test the claim that the mean weight loss is the same for the different diets. Source of Variation SS df MS F P-value Forff Between Groups 202.462 2 101 23117 3.2046...
Exercise 10-31 Algo A diet center claims that it has the most effective weight loss program in the region. Its advertise program lose more than 1 pounds within a month." Six clients of this program are weighed on the month later. Let the difference be defined as Weight on First Day of Diet minus Weight One Mont reference the appropriete table: z table or t table) Weight on First Day of Weight One client Diet Month Later 1 156 165...
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