Which is relatively better: a score of 70 on a psychology test or a score of 52 on an economics test? Scores on the psychology test have a mean of 95 and a standard devation of 10 Scores on theeconomics test have a mean of 64 and a standard deviation of 5.Choose the correct answer below.O A. The psychology test score is relatively better because its z score is greater than the z score for the economics test score.O B. The economics test score is relatively better because its z score is greater than the z score for the psychology test score.OC. The psychology test score is relatively better because its z score is less than the z score for the economics test score.O D. The economics test score is relatively better because its z score is less than the z score for the psychology test score.

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Answered: Which is relatively better: a score of…

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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Use z scores to compare the given values. The tallest living man at one time had a height of 248 cm. The shortest living man at that time had a height of 59.8 cm. Heights of men at that time had a mean of 177.61 cm and a standard deviation of 7.48 cm. Which of these two men had the height that was more extreme? and the z score for the shortest man is z = the man had the height that was more extreme. Since the z score for the tallest man is z = (Round to two decimal places.)
A student scores 74 on a geography test and 264 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 5. The mathematics test has a mean of 300 and a standard deviation of 24. If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class? OA. The student scored better on the mathematics test. OB. The student scored better on the geography test. OC. The student scored the same on both tests.
Mariah and Amanda began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Mariah took a test in English and earned a 81, and Amanda took a test in Art History and earned a 61.8. Use the fact that all the students' test grades in the English class had a mean of 75.7 and a standard deviation of 9, and all the students' test grades in Art History had a mean of 60.7 and a standard deviation of 10.3 to answer the following questions.a) Calculate the z-score for Mariah's test grade.z=b) Calculate the z-score for Amanda's test grade.z=c) Which person did relatively better? Mariah Amanda They did equally well.
Jared has a mean of 74 on his quizzes, with a standard deviation of 7. On his most recent quiz, he scored a 65. Is this unusual compared to how he usually performs on quizzes?
An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
Which of the following answers is correct and why? I really need an explanation for this question.
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
Assume you had the following information regarding three different tests you took: The MATH test mean was 70; the standard deviation was 2; your score is 66. The VERBAL test mean was 60; the standard deviation was 3; your score is 57. The SCIENCE test mean was 80; the standard deviation was 3; your score is 83. On which of the 3 tests did you have your worst performance, relative to other students? A. Math B. Verbal C. Science
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard deviation is 5. Which is this person’s stronger ability: verbal or quantitative? Explain your answer to a person who has never had a course in statistics.
The number of calories a person consumes daily follows an approximately normal distribution. (a) Calculate the z-score representing the highest 10% of calories consumed in a day. (Use a table or SALT. Round your answer to two decimal places.) (b) If the mean number of calories consumed is 2,350 with a standard deviation of 175 calories, calculate the z-score for a day where 2,550 calories were consumed. (Round your answer to two decimal places.) (c) Is this 2,550-calorie day in the top 10% of days? Yes OR No
Lecture(10.8): The Peabody Picture Vocabulary Test has a standard score mean of 100 and a standard deviation of 15. You tested a class of grade 2 students wonderinf if these scores would be different from the population. After testing this hypotheses you decided to continue looking at this data to determine if there are any group differences based on birth order. You group the children the on whether they are the oldest chlid, middle child, or the youngest child. Here is the data based on grouped information. Oldest child: 87 84 98 104 106 91 96 92 Middle child: 65 74 62 60 73 64 71 78 Youngest child: 115 84 85 83 95 94 108 102 89 Test the hypotheses at (alpha=0.05) level of signifance using the 5 step procedure.Make sure to clearly state the null and alternative hypotheses.Round your answer to 2 decimal. You are encouraged to use the following table to help you…

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