Homework Answers
Hi,
Option A is correct
Logic: Higher the Z score, better the performance in a test is.
Thanks!
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22. Use standardization ( scores) to determine which has a better relative position: a score of...
Determine which score corresponds to the higher relative position. 14) Which is better: a score of...
Determine which score corresponds to the higher relative position. 14) Which is better: a score of 82 on a test with a mean of 70 and a standard deviation of 8, or a score of 82 on a test with a mean of 75 and a standard deviation of 4? A) The first 82 B) The second 82 C) Both scores have the same relative position. Find the percentile for the data value. 15) Data set: 6 9 21 12...
Question 35 (5 points) Determine which score corresponds to the higher relative position. Which score has...
Question 35 (5 points) Determine which score corresponds to the higher relative position. Which score has a higher relative position, a score of 23.8 on a test for which X = 20 and s - 2, or a score of 327.6 on a test for which 7 = 280 and s = 28? 1) Both scores have the same relative position. 2) A score of 327.6 3) A score of 23.8
Determine which score corresponds to the higher relative position. 25) Which is better, a score of...
Determine which score corresponds to the higher relative position. 25) Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a Score of 688 on a test with a mean of 493 and a standard deviation of 150? Use the empirical rule to solve the problem. 26) The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of...
Two standardized tests, test A and test B, use very different scales. Assume that in one...
Two standardized tests, test A and test B, use very different scales. Assume that in one year the distribution of scores on test A can be modeled by N(1300,250) and scores on test B can be modeled by N(15, 3). If an applicant to a university has taken test A and scored 1670 and another student has taken test B and scored 19, compare these students' scores using z-values. Which one has a higher relative score? Explain. The Z-value of...
3. Calculate the Z score, given x 55,0-2.5, and -28 Ans: 4. Calculate x , given...
3. Calculate the Z score, given x 55,0-2.5, and -28 Ans: 4. Calculate x , given ze-1.45, σ 30.5, and μ-40 Ans: 5. A student scores 74 on a geography test and 282 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 12. If the data for both tests are normally distributed, on which test did the student...
This Quiz: 8pts Two standardized tests, test A and test B, use very dfferent scaes Assume...
This Quiz: 8pts Two standardized tests, test A and test B, use very dfferent scaes Assume byN 1500, 125) and scores on teset 8 can be modeied by N(17, 2) if an applicent to a univernsity he has taken sest B and scored 24, compare these studenis' scores using z-vaiues Which one has a higher relative score? Explain The z-value ofthe test A sore isZA.□ Round to two decimal places as needed) The 2-value of the test B score is...
1. Liv attends “Happy Days” preschool. The preschool ran assessments on the children’s motor skills (such...
1. Liv attends “Happy Days” preschool. The preschool ran assessments on the children’s motor skills (such as ability to tie a shoe), social skills (such as sharing and saying “please” and “thank you”), and school readiness (such as knowing ABCs and basic counting). The motor skills test has a class mean of 6 with a standard deviation of 1, the social skills test has a class mean of 10 with a standard deviation of 2, and the school readiness test...
Question 2 Emma 60 Noah 75 Olivia 95 Mason 80 Liam 65 Sophia 82 Isabella 75...
Question 2 Emma 60 Noah 75 Olivia 95 Mason 80 Liam 65 Sophia 82 Isabella 75 Ethan 98 James 93 Charlotte 87 2a. What is the mean of the mid-term test scores? Mean = = 60+75+95+80+65+82+75+98+93+87= 810/10= 81 2b. What is the standard deviation of the mid-term test scores? Names Score Deviations from Mean(X-Mean) Squared Deviations Emma 60 -21 441 Noah 75 -6 36 Olivia 95 14 196 Mason 80 -1 1 Liam 65 -16 256 Sophia 82 1 1...
Computing Z scores A teacher wanted to know how well the gifted students in here class...
Computing Z scores A teacher wanted to know how well the gifted students in here class perform relative to her other classes. She administers a standardized test with a mean of 50 and standard deviation of 10. Her class of 31 students has an average score of 55, what percent of classes is their average score higher than? 2. A researcher wanted to study the effects of mentoring on intelligence scores. He wanted to know as a baseline what the...
4. (2pt) Exam Grades Which of these exam grades has a better relative position? a. A...
4. (2pt) Exam Grades Which of these exam grades has a better relative position? a. A grade of 82 on a test with X- 85 and s- 6 b. A grade of 56 on a test with X 60 and s 5 (4pt) ROUND THE ANSWER TO THREE DECIMAL PLACES. Paper Use Each American uses an average of 650 pounds (295 kg) of paper in a year. Suppose that the distribution is approximately normal with a population standard deviation of...
Determine which score corresponds to the higher relative position. 14) Which is better: a score of 82 on a test with a mean of 70 and a standard deviation of 8, or a score of 82 on a test with a mean of 75 and a standard deviation of 4? A) The first 82 B) The second 82 C) Both scores have the same relative position. Find the percentile for the data value. 15) Data set: 6 9 21 12...
Question 35 (5 points) Determine which score corresponds to the higher relative position. Which score has a higher relative position, a score of 23.8 on a test for which X = 20 and s - 2, or a score of 327.6 on a test for which 7 = 280 and s = 28? 1) Both scores have the same relative position. 2) A score of 327.6 3) A score of 23.8
Determine which score corresponds to the higher relative position. 25) Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a Score of 688 on a test with a mean of 493 and a standard deviation of 150? Use the empirical rule to solve the problem. 26) The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of...
Two standardized tests, test A and test B, use very different scales. Assume that in one year the distribution of scores on test A can be modeled by N(1300,250) and scores on test B can be modeled by N(15, 3). If an applicant to a university has taken test A and scored 1670 and another student has taken test B and scored 19, compare these students' scores using z-values. Which one has a higher relative score? Explain. The Z-value of...
3. Calculate the Z score, given x 55,0-2.5, and -28 Ans: 4. Calculate x , given ze-1.45, σ 30.5, and μ-40 Ans: 5. A student scores 74 on a geography test and 282 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 12. If the data for both tests are normally distributed, on which test did the student...
This Quiz: 8pts Two standardized tests, test A and test B, use very dfferent scaes Assume byN 1500, 125) and scores on teset 8 can be modeied by N(17, 2) if an applicent to a univernsity he has taken sest B and scored 24, compare these studenis' scores using z-vaiues Which one has a higher relative score? Explain The z-value ofthe test A sore isZA.□ Round to two decimal places as needed) The 2-value of the test B score is...
4. (2pt) Exam Grades Which of these exam grades has a better relative position? a. A grade of 82 on a test with X- 85 and s- 6 b. A grade of 56 on a test with X 60 and s 5 (4pt) ROUND THE ANSWER TO THREE DECIMAL PLACES. Paper Use Each American uses an average of 650 pounds (295 kg) of paper in a year. Suppose that the distribution is approximately normal with a population standard deviation of...
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