A test is used to assess readiness for college. In a recent​ year, the mean test score was 19.2 and the standard deviation was 4.5. Identify the test scores that are significantly low or significantly high. What test scores are significantly​ low?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
icon
Related questions
Topic Video
Question

Consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2.

A test is used to assess readiness for college. In a recent​ year, the mean test score was 19.2 and the standard deviation was 4.5. Identify the test scores that are significantly low or significantly high.

What test scores are significantly​ low? Select the correct answer below and fill in the answer​ box(es) to complete your choice.
 
 
A.
Test scores that are greater than_____
​(Round to one decimal place as​ needed.)
 
B.
Test scores that are less than____
​(Round to one decimal place as​ needed.)
 
C.
Test scores that are between_______ and _____
(Round to one decimal place as needed. Use ascending​ order.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill