you Created a surveythat meawere DepressionIn people. you want to testthe Claim that the Mean.meusurements of Depressionthat peaple have is not eguedto 6.5. A sample. of 145Of you patients had a meandepression measurement ofX=6.7 and a standarddeviation of l,5.

Solution-: Given: x¯=6.7,μ0=6.5,n=145,s=1.5 We test the claim that the mean measurement of…

Answered: you created a survey that measue…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Similar questions

It takes an average of 9.9 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 50 injured patients to immediately tell the truth about the injury and noticed that they averaged 9.2 minutes for their blood to begin clotting after their injury. Their standard deviation was 3.79 minutes. What can be concluded at the the 0.05 level of significance? a. The test statistics t = (please show your answer to 3 decimal places.) b. The p-value = (Please show your answer to 4 decimal places.)
Nora earned a score of 14 on Exam A that had a mean of 20 and a standard deviation of 4. She is about to take Exam B that has a mean of 200 and a standard deviation of 40. How well must Nora score on Exam B in order to do equivalently well as she did on Exam A? Assume that scores on each exam are normally distributed.
Combining test scores The first Stats exam had a meanof 65 and a standard deviation of 10 points; the secondhad a mean of 80 and a standard deviation of 5 points.Derrick scored an 80 on both tests. Julie scored a 70 onthe first test and a 90 on the second. They both totaled160 points on the two exams, but Julie claims that hertotal is better. Explain.
Mario scored 82 on his history final. The class mean was 78 with a standard deviation of 3 points. He scored 72 on his biology final with a mean score of 65 and a standard deviation of 5 points. Which grade was better compared with the class mean referencing a normal distribution? a. The biology test is better. The z-scores for the biology exam and the history exam respectively are 1.4 and 1.33. b. The biology test is better. The z-scores for the biology exam and the history exam respectively are 1.33 and 1.4. c. The history test is better. The z-scores for the biology exam and the history exam respectively are 1.33and 1.4. d. The history test is better. The z-scores for the biology exam and the history exam respectively are 1.4 and 1.33.
My Physics professor announced that top 18% will get A in the class. Class mean is 72, and standard deviation is 6. To get the grade A, what score should I get at least?
Jack had an average score of 75 with a standard deviation of 3. Mikes z-score was 1.85. His actual score was
After calculating the mean and standard deviation, how do we interpret the result, and when a variable look strange?
The scores on a standardized test are normally distributed with a mean of 115 and standard deviation of 20. What test score is 2.2 standard deviations above the mean?
You collected data from a random sample of students on their impressions of the university. On a particular opinion item item, the mean for male students was 15.2 -- with a standard deviation of 3.4. The mean on that item for women was 14.4, with a standard deviation of 3.8. Calculate Cohen's d effect size. IN THE SPACE BELOW, write the effect size AND your interpretation of it.
there are 75 students in the class and 20 students are getting a+ grade in the class find the mean and standard deviation value for given data..
Suppose X is normal with mean=15 and standard-deviation=2. Find the X value so that 4% of all values are below this X value. Show how you use z table, show the graphics to present the answer in a good way.

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you created a survey that measue Depression In you want to test people. the Claim that the mean. meusurements of Depression that peaple have is not eguel to 6.5. A sample. of 145 u mean Of you depression measerement of X=6.7 and a standard deviation of l,5. patrents had a