A standardized exam's scores are normally distributed. In a recent year, the mean test score was 21.3 and the standard deviation was 5.6. The test scores of four students selected at random are 13, 22, 9, and 37. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 13 is nothing.(Round to two decimal places as needed.) The z-score for 22 is nothing.(Round to two decimal places as needed.) The z-score for 9 is nothing.(Round to two decimal places as needed.) The z-score for 37 is nothing.(Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your cho
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 21.3 and the standard deviation was 5.6. The test scores of four students selected at random are 13, 22, 9, and 37. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 13 is nothing.(Round to two decimal places as needed.) The z-score for 22 is nothing.(Round to two decimal places as needed.) The z-score for 9 is nothing.(Round to two decimal places as needed.) The z-score for 37 is nothing.(Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your cho
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
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 21.3 and the standard deviation was 5.6. The test scores of four students selected at random are 13, 22, 9, and 37. Find the z-scores that correspond to each value and determine whether any of the values are unusual.
The z-score for 13 is nothing.
(Round to two decimal places as needed.)
The z-score for 22 is nothing.
(Round to two decimal places as needed.)
The z-score for 9 is nothing.
(Round to two decimal places as needed.)
The z-score for 37 is nothing.
(Round to two decimal places as needed.)
Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice.
A.
The unusual value(s) is/are nothing.
(Use a comma to separate answers as needed.)
B.
None of the values are unusual.
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