In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide standardized test for the students in her class. Instead of looking at the scores relative to the norms in the state, the teacher wants to understand the scores relative to the students who will be in the class. To do so, she decides to convert the test scores into z-scores relative to the mean and standard deviation of the students in the class. The mean test score in her upcoming class is 49, and the standard deviation is 20.7. The following are the scores for some (not all) of her students. What is the z-score for student B? Student Test Score z-score A 32 -0.82 B 45 66 0.82 D 55 0.29 E 33 -0.77

In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide standardized test for the students in her class. Instead of looking at the scores relative to the norms in the state, the teacher wants to understand the scores relative to the students who will be in the class. To do so, she decides to convert the test scores into z-scores relative to the mean and standard deviation of the students in the class. The mean test score in her upcoming class is 49, and the standard deviation is 20.7. The following are the scores for some (not all) of her students. What is the z-score for student B? Student Test Score z-score A 32 -0.82 B 45 66 0.82 D 55 0.29 E 33 -0.77

Name: In preparation for the upcoming school year, a teacher looks at raw t
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: In preparation for the upcoming school year, a teacher looks at raw test scores on the statewide standardized test for the students inher class. Instead of looking at the scores relative to the norms in the state, the teacher wants to understand the

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Cris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city. Being an experienced businessperson, Cris provides incentives for the salespeople operating the food carts. This year, she plans to offer monetary bonuses to her salespeople based on their individual mean daily sales. Her first task is to see if there is a significant difference in the mean daily sales among the different salespeople. She chooses a "sample" of days for each salesperson and records the sales for each day. She then runs a one-way, independent-samples ANOVA test to determine whether or not she can conclude that at least one salesperson's performances is significantly different from the others. (Otherwise, she'll split the bonuses evenly among all the salespeople.) In her ANOVA, the "groups" are the different salespeople, and the variable of interest is the daily sales…
Lauren and Chelsea began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Lauren took a test in Math and earned a 75, and Chelsea took a test in Social Studies and earned a 70. Use the fact that all the students' test grades in the Math class had a mean of 76.4 and a standard deviation of 9.8, and all the students' test grades in Social Studies had a mean of 63.4 and a standard deviation of 9.6 to answer the following questions.a) Calculate the z-score for Lauren's test grade.z=z=b) Calculate the z-score for Chelsea's test grade.z=z=c) Which person did relatively better? Lauren Chelsea They did equally well.
Kathy is a business administration major at Florida State University. She is comparing her performanceon her recent midterm exams. Kathy scored an 82 on her accounting exam and an 88 on her managementexam.The mean and standard deviations of the two exams are shown in the table below Course Mean Standard deviation Accounting 70 10 Management 90 4 a. What is the z-score on the Accounting exam? b. What is the z-score on the Management exam? c. On which of the exams did Kathy perform RELATIVELY better? EXPLAIN.
On a nationwide math test, the mean was 51 and the standard deviation was 4. If Roberto scored 85, what was his z-score?
On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90, what was his z-score?
CO LO Translate Mikayla and April began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Mikayla took a test in Science and earned a 78.6, and April took a test in English and earned a 61.3. Use the fact that all the students' test grades in the Science class had a mean of 75.6 and a standard deviation of 11.8, and all the students' test grades in English had a mean of 65.3 and a standard deviation of 9.6 to answer the following questions. a) Calculate the z-score for Mikayla's test grade. [Round your answer to two decimal places.] 三2 b) Calculate the z-score for April's test grade. [Round your answer to two decimal places,] 三2 c) Which person did relatively better? Mikayla O April O They did equally well. Submit Question 52°F Clou +56 五。 Or
The mean grade for chemistry exam was 76% with a standard deviation of 6%.the mean grade for statistics exam was 81% with a standard deviation of 2%.Jason got an 83% on both exams.which one did he do relatively better on?
A researcher collects data from 30 different individuals and wants to understand the correlation between income and education. The degrees of freedom for the analysis would be?
Abby's score of 704 on the math portion of the 2002 GRE exam placed her in the 84th percentile rank. The standard deviation of this exam was 141. If the test scores are normally distributed, what was the mean score of the 2002 test takers? write your answer with one decimal place.
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 57 people she sampled who work out in the morning have a mean of 4.8 hours of exercise each week. The 56 people surveyed who exercise in the afternoon or evening have a mean of 4.2 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.8 hours for people who exercise in the morning and 0.3 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2: Construct a 95 % confidence interval for the true difference between the mean amounts of time…
Lucas and Alex began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Lucas took a test in Math and earned a 73.4, and Alex took a test in English and earned a 70.5. Use the fact that all the students' test grades in the Math class had a mean of 74.1 and a standard deviation of 11.3, and all the students' test grades in English had a mean of 60.9 and a standard deviation of 8.1 to answer the following questions.a) Calculate the z-score for Lucas's test grade.z=z=b) Calculate the z-score for Alex's test grade.z=z=
What is the name of the test used?