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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1537 and the standard deviation was 315. The test scores of four students selected at random are 1920, and 1260. Find the z-scores that correspond to each value. The z-score for 1920 is (Round to two decimal places as needed.) The z-score for 1260 is. (Round to two decimal places as needed.)

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1537 and the standard deviation was 315. The test scores of four students selected at random are 1920, and 1260. Find the z-scores that correspond to each value. The z-score for 1920 is (Round to two decimal places as needed.) The z-score for 1260 is. (Round to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1537 and the standard deviation was 315. The test scores of four students selected correspond to each value. random are 1920, and 1260. Find the z-scores that The z-score for 1920 is. (Round to two decimal places as needed.) The z-score for 1260 is (Round to two decimal places as needed.)
Transcribed Image Text:A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1537 and the standard deviation was 315. The test scores of four students selected correspond to each value. random are 1920, and 1260. Find the z-scores that The z-score for 1920 is. (Round to two decimal places as needed.) The z-score for 1260 is (Round to two decimal places as needed.)
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