Question 3In 2005, 1,586,623 students heading to college took the SAT. The distribution of scores in the mathsection of the SAT follows a normal distribution with mean = 520 and standard deviation o = 115.a. Calculate the z-score for an SAT score of 720. Approximately how many students scored 720 orbetter?b. For 2012, the SAT math test had a mean of 514 and standard deviation 117. The ACT math test isan alternate to the SAT and is approximately normally distributed with mean 21 and standarddeviation 5.3. If one person took the SAT math test and scored 700 and a second person took theACT math test and scored 30, who did better with respect to the test they took?

Answered: Image /qna-images/answer/7e969666-052c-4501-b607-510efa231436.jpg

Answered: a. Calculate the z-score for an SAT…

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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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
An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 82 and in math 89. The overall results on the economics exam had a mean of 70 and a standard deviation of 7, while the mean math score was 69, with a standard deviation of 10. On which exam did she do better compared with the other students?
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?
Eleanor scores 680 on the mathematics part of the SAT. The distribution of SAT math scores in recent years has been Normal with mean 515 and standard deviation 121. Gerald takes the ACT Assessment mathematics test and scores 27. ACT math scores are Normally distributed with mean 18.6 and standard deviation 3.3. a. What is Elanor's standardized score? Round to 2 decimal places. b. What is Gerald's standardized score? Round to 2 decimal places. c. Assuming that both tests measure the same kind of ability, who has the higher score? Gerald. Elanor. O They both did equally well.
The mean mathematics score for seniors who took the SAT in 2018 was 531. If the standard deviation for this same year was 118, what is the z score for a person who received an SAT mathematics score of 685? a. -1.31 b. -0.77 c. +1.31 d. +0.77
Imagine that for those who meditate daily, the number of minutes in meditation has mean 35 and standard deviation 10. In a group of 200 such persons, how many are expected to meditate more than 43 minutes per day? Click the icon to view the table of z-scores. Of the 200 persons, approximately will meditate more than 43 minutes per day. (Round to the nearest whole number as needed.)
Consider the following data of 10 exams scores: 28, 57, 58, 64, 69, 74, 79, 80, 83, 85 1. The the mean, median, and mode 2. find the standard deviation without a graphing calculator. Show all your computations
Use z scores to compare the given values. The tallest living man at one time had a height of 245 cm. The shortest living man at that time had a height of 60.8 cm. Heights of men at that time had a mean of 173.94 cm and a standard deviation of 6.92 cm. Which of these two men had the height that was more extreme?
Raul received a score of 79 on a history test for which the class mean was 70 with a standard deviation of 7. He received a score of 79 on a biology test for which the class mean was 70 with standard deviation 9. On which test did he do better relative to the rest of the class? A. biology test B. history test C. the same

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