The test scores for the analytical writing section of a particular standardized test can be approximated by a normal distribution, as shown in the figure.(a) What is the maximum score that can be in the bottom 5% of scores?(b) Between what two values does the middle 90% of scores lie?(a) The maximum score that can be in the bottom 5% is(Round to two decimal places as needed.)(b) The middle 90% of scores lies between(Round to two decimal places as needed.)on the low end andon the high end.MacBook AirWHμ 3.70.891.43.7ScoreNextQG

Answered: The test scores for the analytical…

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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One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the teachers were measured before and after the seminar. A positive number for change in attitude indicates that a teacher's attitude toward math became more positive. The twelve change scores are as follows. 4; 7; −1; 1; 0; 5; −2; 2; −1; 6; 5; −3 Part (a) What is the mean change score? (Round your answer to two decimal places.)
Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. The SAT score of a student whose score is at the 99th percentile is closest to what value? Group of answer choices 780 400 760 805
A teacher wants to assign an 'A' grade to everyone that scores in the 80th percentile. The grades are: 8 10 12 15 25 40 50 55 60 75 85 90 What is the 80th percentile value What is the meaning
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Is the z-score z = -1.05 to the left or to the right of the mean?
The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 130, while the mean score was 71 and the standard deviation was 13. 32 45 97 110 58 71 84 Distribution of Test Scores Q What is the approximate percentage of students who scored less than 45 on the test? What is the approximate percentage of students who scored between 71 and 84 on the test? What is the approximate percentage students who scored between 58 and 84 on the test? What is the approximate percentage of students who scored between 45 and 97 on the test?
How do I interpret the 6 characteristics whith the data given? Column Mean Median Range Variance Std. dev. 1 - Cholesterol 253.92857 268 218 2276.291 47.710492
The mean and median both estimate the "average" of a sample. In 2020, the US mean and median net compensations were approximately $53,383 and $34,612, respectively. What does the difference between the mean and median imply for the distribution of incomes in the US? (Use the term "skew" correctly in your answer)
For the first half of a baseball season, a player had 85 hits out of 270 times at bat. The player's batting average was 85 270 ≈ 0.315. During the second half of the season, the player had 56 hits out of 275 times at bat. The player's batting average was 56 275 ≈ 0.204. (Round your answers to three decimal places.) (a) What is the average (mean) of 0.315 and 0.204?(b) What is the player's batting average for the complete season?(c) Does the answer in part (a) equal the average in part (b)? YesNo
The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 130, while the mean score was 70 and the standard deviation was 13. 31 44 57 70 83 109 96 Distribution of Test Scores Use the "Empirical Rule", not a calculator or other technology. Do not round your answers. What is the approximate percentage of students who scored higher than 96 on the test? % What is the approximate percentage of students who scored between 44 and 96 on the test? What is the approximate percentage students who scored between 57 and 83 on the test? What is the approximate percentage of students who scored between 57 and 70? %
IQ scores are distributed approximately normally, with a mean of 100 and SD of 15 a. What proportion of IQ are over 120? (area =?) b. What is the percentile when IQ is 120?

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