Question

Atkins Weight Loss Program: In a test of weight loss programs, 40 adults used the Atkins...

Atkins Weight Loss Program: 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. Construct a 90% confidence interval estimate of the mean weight loss for all such subjects. Does the Atkins program appear to be effective? Does it appear to be practical?

Can this be constructed in XLSTAT? Where would you find the data to enter into XLSTAT?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
3. In a test of weight loss programs, 40 adults used the Atkins weight loss program....
3. 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. Construct a 90% confidence interval estimate of the standard deviation of the weight loss for all such subjects. Does the confidence interval give us information about the effectiveness of the diet?
Forty adults participated in a new weight loss program for 12 months. The mean weight loss...
Forty adults participated in a new weight loss program for 12 months. The mean weight loss was found to be 2.1 lb. with a standard deviation of 4.8 lb. Construct a 90% confidence interval for the true mean weight loss for all people who participate in the program.
A study of 10 different weight loss programs involved 500 subjects. Each of the 10 programs...
A study of 10 different weight loss programs involved 500 subjects. Each of the 10 programs had 50 subjects in it. The subjects were followed for 12 months. Weight change for each subject was recorded. The researcher wants to test the claim that all ten programs are equally effective in weight loss. (a) Which statistical approach should be used? (i) confidence interval (ii) t-test (iii) ANOVA (iv) Chi square (b) Explain the rationale for your selection in (a). Specifically, why...
A group of 78 people enrolled in a weight-loss program. They also had to adhere to...
A group of 78 people enrolled in a weight-loss program. They also had to adhere to a regular exercise program. After six months, the mean weight loss was 25 pounds with a standard deviation of 9 pounds. A second group of 43 people enrolled in the same program with the exception of regular exercise. After six months, their mean weight loss was 14 with standard deviation 7 pounds. Construct a 99% confidence interval for the mean difference in weight losses.
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before​ treatment, 15 subjects had a mean wake time of 100.0min. After​ treatment, the 15 subjects had a mean wake time of 95.5min and a standard deviation of 22.8min. Assume that the 15sample values appear to be from a normally distributed population and construct a 90​% confidence interval estimate of the mean wake time for a population with drug treatments. What does...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before​ treatment, 13 subjects had a mean wake time of 103.0 min. After​ treatment, the 13 subjects had a mean wake time of 80.4 min and a standard deviation of 22.3 min. Assume that the 13 sample values appear to be from a normally distributed population and construct a 90​% confidence interval estimate of the mean wake time for a population with...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before​ treatment, 15 subjects had a mean wake time of 105.0 min. After​ treatment, the 15 subjects had a mean wake time of 101.6 min and a standard deviation of 21.5 min. Assume that the 15 sample values appear to be from a normally distributed population and construct a 90​% confidence interval estimate of the mean wake time for a population with...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. before treatment, 14 subjects had a mean weight time of 100.0 min. after treatment, the 14 subjects had a mean wake time of 96.2 min and a standard deviation of 22.6 min. assume that the 14 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake Time for a population with...
A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia...
A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the​ drug, 15 subjects had a mean wake time of 90.7 min and a standard deviation of 44.9 min. Assume that the 15 sample values appear to be from a normally distributed population and construct a 90​% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result...
A study was conducted to determine the effectiveness of a diet program in reducing weight of...
A study was conducted to determine the effectiveness of a diet program in reducing weight of obeys people. Eight randomly selected patients were put on this diet and the amount of weight losses (in pounds) were recorded. Suppose the sample mean and the sample standard deviation of weight losses were 38 and 4.598136 pounds, respectively. Construct a 90% confidence interval for the average weight loss and based on the confidence interval constructed determine if you would expect to see an...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT