Question

Give the Z score(2 decimal places) for each test score with the given class mean and standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12, b) For a 75 on a test with a class mean of 60 and a standard deviation of 6 Which score is relatively higher the 92 or the 75? Is either unusual?

Name: Give the Z score(2 decimal places) for each test score with the given class mean and standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12, b) For a 75 on a test with a class mean of 60 and a standard deviation of 6 Which score is relatively higher the 92 or the 75? Is either unusual?
Uploaded: 2023-03-22T21:55:59-08:00
Duration: 3 min 31 s
Channel: Jeremy Gamble
Description: Give the Z score(2 decimal places) for each test score with the given class mean and standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12, b) For a 75 on a test with a class mean of 60 and a standard deviation of 6 Which score is relatively higher the 92 or the 75? Is either unusual?

          Give the Z score(2 decimal places) for each test score with the given class mean and standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12, b) For a 75 on a test with a class mean of 60 and a standard deviation of 6 Which score is relatively higher the 92 or the 75? Is either unusual?

Give the Z score(2 decimal places) for each test score with the given class mean and standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12, b) For a 75 on a test with a class mean of 60 and a standard deviation of 6 Which score is relatively higher the 92 or the 75? Is either unusual?

Added by -Ngel C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Jeremy Gamble

03/22/2023

Step 1

The formula for the Z score is: Z = (X - μ) / σ where X is the test score, μ is the class mean, and σ is the standard deviation. a) For a 92 on a test with a class mean of 78 and standard deviation of 12: Z = (92 - 78) / 12 Z = 14 / 12 Z ≈ 1.17 b) For a 75 on Show more…

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Give the Z score (2 decimal places) for each test score with the given class mean and standard deviation: a) For a 92 on a test with a class mean of 78 and standard deviation of 12. b) For a 75 on a test with a class mean of 60 and a standard deviation of 6. Which score is relatively higher, the 92 or the 75? Is either unusual?