A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1451 and the standard d

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A Standardized Exam S Scores Are Normally Distributed In A Recent Year The Mean Test Score Was 1451 And The Standard D 1 (93.15 KiB) Viewed 20 times

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1451 and the standard deviation was 312. The test scores of four students selected at random are 1880, 1170, 2140, and 1350. Find the Z-scores that correspond to each value and determine whether any of the values are unusual. The Z-score for 1880 is (Round to two decimal places as needed.) The Z-score for 1170 is (Round to two decimal places as needed.) The Z-score for 2140 is (Round to two decimal places as needed.) The Z-score for 1350 is (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