Question: I just need help with these questions :) 2. Raw scores on standardized tests are often transformed for easier comparison. A test of reading ability

I just need help with these questions :)

2. Raw scores on standardized tests are often transformed for easier comparison. A test of reading ability has a mean of 75 and a standard deviation of 10 when given to third-graders. Sixth- graders have a mean score of 82 and a standard deviation of 11 on the same test. (a) Eileen is a third-grade student who scores 78 on the test. Vicki is a sixth-grade student who scores 86. Calculate the z-score for each student. Who scored higher within his or her grade? Explain your reasoning. (b) Suppose that the distribution of scores in each grade is Normal. Determine the percentiles for Eileen and Vicki. Interpret these percentiles. (c) What percent of sixth-graders earn a score of at least 93 on the reading test

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

11. Raw scores on standardized tests are often transformed for easier comparison. A test of reading ability has a mean of 75 and a standard deviation of 10 when given to third-graders. Sixth-graders...

CHALLENGE Norms for reading scores. Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has mean 75 and standard deviation 10 when given to...

1.176 Norms for reading scores. Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has mean 70 and standard deviation 10 when given to...

5. Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has a mean of 75 and a standard deviation of 10 when given to third-graders. Sixth- graders...

Raw scores Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability,r has a mean of 75 and a standard deviation of It} when given to third-graders. Sixth-...

1)Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has a mean of 64 and a standard deviation of 10 when given to third graders. Sixth graders have...

Solve Name: Class: Date: ID: A Statistics Quiz Lessons 2.1A through 2.2A Free Response - Read the question CAREFULLY and answer it COMPLETELY 1. A study of elite distance runners found a mean body...

Please read attached and Critique: Write critique of the paper. Do you agree with the author that statistics is important? Why? Feel free to provide your own examples of a valuable statistical study....

Read:First read the article "Using Real-World Examples to Enhance the Relevance of the Introductory Statistics Course" by Friedman, Friedman and Amoo....

Question: How would you incorporate Cultural Inclusivity in the classroom? 10 Culturally Inclusive Instruction Learning Outcomes After reading this chapter, you should be able to ... Explain the role...

Jaycie Phelps Inc. acquired 20% of the outstanding common stock of Theresa Kulikowski Inc. on December 31, 2013. The purchase price was $1,200,000 for 50,000 shares. Kulikowski Inc. declared and paid...

1 tablespoon minced garlic 1 tablespoon dried marjoram 1 tablespoon ground dried rosemary 2 teaspoons kosher salt 1/2 teaspoon freshly ground black pepper 1 pound 93%-lean ground beef Gyros 1...

the internet is migrating to internet protocol version 6 ( IPv ^ ) which uses _ _ _ _ _ addresses to provide for many more devices than earlier versions

3. Everyone wants information. It has value. It helps people make decisions, hopefully in your favor. Pick a business, one that does non-digital things (products and services). What sort of...

2. Develop a good and lasting relationship

1. Avoid conflicts in the relationship

3. What is happening here and now (1 is oriented towards the proactive, 2 towards the reactive and 3 is a balance between the two). c. Source of inspiration: When I communicate it is important for me...