In a clinical trial of a drug intended to help people stop smoking, 126 subjects were treated with the drug for 13 weeks, and 19 subjects experienced abdominal pain. Ifsomeone claims that more than 8% of the drug's users experience abdominal pain, that claim is supported with a hypothesis test conducted with a 0.05 significance level.Using 0.17 as an alternative value of p, the power of the test is 0.95. Interpret this value of the power of the test.The power of 0.95 shows that there is a % chance of rejecting thehypothesis of p = when the true proportion is actually. That is, if the proportion of usersfp%3Dwho experience abdominal pain is actually , then there is a% chance of supporting the claim that the proportion of users who experience abdominal pain isthan0.08.(Type integers or decimals. Do not round.)ceToc

The power of test is defined as rejecting the null hypothesis when the alternative is true. It os…

Answered: In a clinical trial of a drug intended…

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

In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 330 trials, the touch therapists were correct 155 times. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists.
According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher believes that the proportion of college students who watch TV nightly is less than this. To test this claim the research samples 400 college students and finds that 276 watch TV nightly. At the 0.05 level of significance does this data provide evidence to suggest that the proportion of college students who watch TV nightly is less than 70%? Select the correct hypothesis test for this problem:
Sleep apnea is a disorder in which you have one or more pauses in breathing or shallow breaths while you sleep. In a cross-sectional study of 340 adults who suffer from sleep apnea, it was found that 170had gum disease. Note: In the general population, about 17.5% of individuals have gum disease(c) Estimate the proportion of individuals who suffer from sleep apnea who have gum disease with 99% confidence. Interpret your result. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) A.99% of the population lies in the interval between _____and______. B. There is a 99% chance that the true population proportion of individuals who suffer from sleep apnea who have gum disease is between _______ and _____ C. There is 99% confidence that the population proportion of individuals who suffer from sleep apnea who have gum disease is between ____ and ____
Suppose 214 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.20 H₁: p>0.20 B. Ho: p=0.20 H₁: p0.20 O C. Ho: p=0.20 H₁: p0.20 H₁: p=0.20
Suppose 235 subjects are treated with a drug that is used to treat pain and 52 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. Ho:p>0.20 H₁: p=0.20 OB. Ho: p=0.20 H₁: p>0.20 OC. Ho: p=0.20 H₁: p=0.20 OD. Ho: p=0.20 H₁: p<0.20 n example ... Get more help
In a study, a random sample of 20 adults rated the effectiveness of advertisements. Each adult rated an advertisement that lasted 30 or 60 seconds. The block design in the accompanying table shows these ratings (on a scale of 1 to 5, with 5 being extremely effective). Use a = 0.05 and a technology tool and the given block design to perform a two-way ANOVA test. Click the icon to view the block design and ratings. Determine the null and alternative hypotheses for the main effects. Select all that apply. O A. Ho: The length of the ad has no effect on the rating. B. Ho: The rating has no effect on the advertising medium. Ha: The rating has an effect on the advertising medium. Ha: The length of the ad has an effect on the rating. O c. Ho: The advertising medium has no effect on the rating. D. Ho: : The advertising medium has no effect on the length of the ad. Ha: The advertising medium has an effect on the rating. : The advertising medium has an effect on the length of the ad. Ha: length…
A nutrition expert claims that the average American is overweight: To test his claim, a random sample of 25 Americans was selected, and the difference between each person's actual weight and idea weight was calculated. For this data, we have = 16 and 8 = 28.4. Is there sufficient evidence to conclude that the expert's claim is true? Carry out a hypothesis test at a 8% significance level. Hint: Pay attention to the variable being measured: the difference between actual weight and ideal. A positive value indicates that the person is overweight. A. The value of the standardized test statistic (give to 3 decimal places): B. The p-value is (give to 4 decimal places): C. Your decision for the hypothesis test: O A. Reject Ho- OB. Reject Ha C. Do Not Reject Ha- O D. Do Not Reject Ho- E
Suppose 250 subjects are treated with a drug that is used to treat pain and 50 of them developed nausea. Use a 0.05 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. Ho: p=0.20 H₁: p=0.20 OB. Ho: p=0.20 H₁: p0.20 H₁: p=0.20 D. Ho: p=0.20 H₁: p>0.20 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) hco
8.9
Floretta, a golfer, claims that her drive distance is not equal to 238 meters, on average. Several of her friends do not believe her, so she decides to do a hypothesis test, at a 5% significance level, to persuade them. She hits 19 drives, collects the proper data, and works through the testing procedure: • Hou = 238; HH #238 • a = 0.05 (significance level) The test statistic is X-Ho Zo == 256-238 14 V19 <= 5.6 • The critical values are -20.025 = -1.96 and 20.025 = 1.96. Conclude whether to reject or not reject Ho. and interpret the results. Select the correct answer below: Reject Ho. At the 5% significance level, the test results are not statistically significant and at best, provide weak evidence against the null hypothesis. Reject Ho. At the 5% significance level, the data provide sufficient evidence to conclude that the mean distance is not equal to 238 meters. Do not reject Ho. At the 5% significance level, the test results are not statistically significant and at best, provide…
According to a University Center for Logistics Management, 10% of all merchandise sold in the United States gets returned. A Seattle department store sampled 89 items sold in January and found that 8 of the items were returned.If you have the following null and alternative hypotheses for a test you are running:H0:p=0.1Ha:p≠0.1Calculate the test statistic, rounded to 3 decimal places
In a random sample of 250 high school students, it was found that 85.2% (213) of them later graduated. Find the 95% and 98% confidence interval for the true proportion of all high school students who graduate. Compare the two proportions.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS