A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements arecentimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple randomsamples and that the differences have a distribution that is approximately normal. Construct a 95% confidenceinterval for the mean of the "before-after" differences. Does hypnotism appear to be effective in reducing pain?BeforeAfter8.36.75.82.69.97.8Get more help.6.88.6possible9.88.67.8Construct a 95% confidence interval for the mean of the "before-after" differences.<< (Round to two decimal places as needed.)Does hypnotism appear to be effective in seducing pain?6.768°F5.43.76.9OA. No, because the confidence interval includes zero.B. Yes, because the confidence interval includes zero.OC. Yes, because the confidence interval does not include zero and is entirely greater than zero.2.1Ne1257/2

Answered: Image /qna-images/answer/8ca83d99-bf4b-4561-a0f8-340a8bbc0ac4.jpg

Answered: A study was conducted to measure the…

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

You want to see if the average grade for nontraditional age students is less than the average grade for traditional age students. You believe both populations are normally distributed, but you do not know the standard deviations for either. You obtain the following two samples of data. Non-Traditional Age Students Traditional Age Students 53.9 87 102.9 99.8 44.1 63.9 72.6 87.5 70.2 100.8 88.7 114.4 46.9 54.7 83.4 101.4 38 108.9 53.1 88 29.5 121.5 117.5 74.3 79.8 105.2 86.8 94.1 88.1 92.7 77.3 93.2 44.1 98.4 74.4 114.4 72.6 75.8 29.5 88 42.4 105.8 48.2 108.9 68.7 92.7 90.8 97.4 85.7 97.4 62.5 135.7 Use a significance level of 0.050.05 to answer the following. What is the test statistic for this sample? (Report answer accurate to three decimal places.)t-test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value =
Select the most appropriate answer. The prediction error for an observation, which is the difference between the actual value and the predicted value of the response variable, is called O a residual O a correlation O an outlier O an extrapolation
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 9 randomly selected students are 73, 66, 64, 67, 70, 63, 64, 72 and 72. = _______ Margin of error at 90% confidence level = ________ 90% confidence interval = _______, _________
Help. How do you find the solution. Where do you start?
In a study on running and happiness, runners indicated the number of miles they ran in a day and their subsequent score on a Happiness Survey (higher score = greater happiness). Runner # of miles (x) Happiness Score (y) 1 16 12 2 4 3 12 14 4 2 8 For these data: The mean of miles run is: 8.50 The mean of the Happiness scores is: 10.00 The standard deviation of the Miles scores is: 5.72 The standard deviation of the Happiness scores is: 3.16 In your submission, please include a copy of the SPSS or Excel output and answer the following: A. What is the r and r? value? B. Based on Pearson's r and r2 value, describe the relationship (direction/strength) that exists between # of miles run and Happiness scores. C. Create a scatterplot for the data using Excel or SPSS (include output in your submission). D. Insert the prediction line from Excel/SPSS on your scatterplot.
Advanced Math
Mathematics scores on the CBBC standardized exam are normally distributed with a population mean of 164 and a population standard deviation of 12. Ms. Norbury believes her two classes of a total of 48 students have a mathematics comprehension different than 164 and she decides to give her classes the exam. The mean on the exam was 161. Test to determine if her class' mathematics comprehension is different than 164 at the 0.05 level of significance. (Show all seven steps.)
Suppose the weight of dogs is normally distributed with a mean of 35 pounds and a standard deviation of 5 pounds. What is the z-score for a dog weighing 34 lbs? Group of answer choices -0.2 0.2 0.98 -0.98 None of the above
When solving a problem related to one sample and the confidence interval of variance. Suppose the sample size is n. What is the degree of freedom we will use?
A hospital administrator wants a statistic to calculate the relationship between the degree of patient satisfaction and whether that patient was treated in the ER or admitted to the hospital. one-sample t point-biserial correlation O independent-measures t sign test
Find z given a 94% confidence interval and a= 0.06. z = ?
Fear of heights - A psychologist has developed a new treatment for acrophobia (the extreme fear of heights) and wants to compare the results of this new treatment to the results of the standard treatment. A study is conducted where a random sample of 16 patients undergo the new treatment and their improvement scores on a diagnostic test are compared to a control sample of 13 patients who received the standard treatment. Summary scores for both groups are shown in the table below. Treatment Sample Mean Sample Standard Deviation New 50.9 12 Standard 47.2 11.4 The degrees of freedom for this problem is d f 26.287709. 1. Select the hypotheses that should be used to assess if the new treatment results in higher average improvement scores than the standard treatment. А. Но : И1 = µ2 vs. Ha : H1 # µ2 OB. Ho : µ1 = µ2 vS. Ha : H1 H2 2. Calculate the test statistic. ? V = 3. Calculate the p-value. p-value =

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