There are dozens of personality tests available on the internet. One test, scored on a scale of 0 to 200, is designed to give an indication of how "personable" thetest taker is, with higher scores indicating more "personability."Suppose that scores on this test have a mean of 97 and a standard deviation of 20. Complete the following statements about the distribution of scores on thispersonality test.(a) According to Chebyshev's theorem, at least (Choose one) of thescores lie between 57 and 137.(b) According to Chebyshev's theorem, at least 36% of the scores liebetween and. (Round your answer to the nearest whole number.)X

(a) According to Chebyshev's theorem, at least 1-1/k^2 of the scores lie within k standard…

Answered: There are dozens of personality tests…

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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SWC surveyed its students and measured the extent of their tendency to conform to others on a scale of 1 to 10. Higher scores indicate a higher tendency to conform. The mean score for students at the college was 6 with a standard deviation of 2. Professor Hayashi believes his students are very independent. He measures the conformity of his students on the same scale to see if they differ from the college. The following scores are the conformity scores of the sample of students: 4 7 5 4 3 10 7What proportion of random samples of students from the population can we predict will have a conformity mean below 3?
Use z scores to compare the given values. The tallest living man at one time had a height of 238 cm. The shortest living man at that time had a height of 142.4 cm. Heights of men at that time had a mean of 175.45 cm and a standard deviation of 5.59 cm. Which of these two men had the height that was more extreme? ... Since the z score for the tallest man is z = 0 and the z score for the shortest man is z = the man had the height that was Im- more extreme. (Round to two decimal places.) shortest tallest
A new Economic / Social Conservatism Scale has scores between 0 and 30 (0 being extreme liberal, 30 being extreme conservative). The mean score is 21 and standard deviation of scores is 5. You want to convert the original scale (call it X) to a new scale (call it Y) that has scores between 0 and 100. What is the correlation of X and Y?
4. A very large population has a mean of 180 and a standard deviation of 24. One day a sample of 64 observations is taken. On another day a sample of 100 observations is taken. Which of the following is true? The standard error of the mean will be smaller with 64 observations. It is impossible to determine any of the above given the available information. The standard error of the mean will be larger with 64 observations. The standard error of the mean will be the same with either 64 or 100 observations.
A high school counselor asks a college-bound student to complete a Readiness to Leave Home questionnaire. Among high schoolers, the questionnaire has a mean of 38.61 and a standard deviation of 9.05. The student earns a raw score of 21. Type your response to the following questions directly in Moodle: What is the student’s z score? (you do not need to show the calculation) In 1-2 sentences, what does the Z score tell us about the student's readiness to leave home? (show that you know the definition of a Z score & can apply it to this example) How would you recommend that the guidance counselor work with the student? (1 sentence)
According to a school in Baghdad , the average grade for pupils in the 12th grade is 95. A sample of 30 students is taken to verify the claim, and it is discovered that the average mark of the students is 95, with a standard deviation of 0.5. Identify some potential lurking variables (if any) that may complicate the relationship you are examining. What is your null and alternative hypothesis? Use mathematical phrasing if possible (e.g. the mean of group one will be greater than the mean of group two). If not, you can restate the null and alt from Part A. What statistical test will you perform to test your hypothesis and how will you determine whether or not your result is statistically significant?
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 49.1, with a standard deviation of 9.2. Based on this information, complete the following statements about the distribution of the scores on the writing section for the recent year. A) according to Chebysheva theorem, at least 36% of the scores lie between ? And ?. Rouen answer to 1 decimal. B) according to Chebyshev’s theorem, at least what perfect of the scores lie between 30.7 and 67.5 ?
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 50.2, with a standard deviation of 9.4. Based on this information, complete the following statements about the distribution of the scores on the writing section for the recent year. (a)According to Chebyshev's theorem, at least of the scores lie between 31.4and 69.0. (b)According to Chebyshev's theorem, at least ▼(Choose one) of the scores lie between 22 and 78.4. The answers will be one of these percents 36,56,75,84,89
There are dozens of personality tests available on the World Wide Web. One test, scored on a scale of 0 to 200, is designed to give an indication of how "personable" the test taker is, with higher scores indicating more "personability." Suppose that scores on this test have a mean of 107 and a standard deviation of 21. Complete the following statements about the distribution of scores on this personality test. A. According to Chebyshev's theorem, at least 8/9 (about 89%) of the scores lie between _ and _? B. According to Chebyshev's theorem, at least ___?% of the scores lie between 65 and 149. . (Round your answer to the nearest whole number.)

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