A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1473 and the standard deviation was 320. The test scores of four students selected at random are 1890, 1210, 2190. and 1350. Find the z-scores that correspond to each value and determine whether any of the values are unusual. Tne z-score tor 1o90 IS (Round to two decimal places as needed.) The z-score for 1210 is (Round to two decimal places as needed.) The z-score for 2190 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. O A. The unusual value(s) is/are. (Use a comma to separate answers as needed.) B. None of the values are unusual.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1473 and the standard deviation was 320. The test scores of four students selected at random are 1890, 1210, 2190.
and 1350. Find the z-scores that correspond to each value and determine whether any of the values are unusual.
Tne z-score Tor 1090 IS
(Round to two decimal places as needed.)
The z-score for 1210 is
(Round to two decimal places as needed.)
The z-score for 2190 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.
O A. The unusual value(s) islare
(Use a comma to separate answers as needed.)
O B. None of the values are unusual.
Click to select your answer(s).
P Type here to search
a
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Transcribed Image Text:A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1473 and the standard deviation was 320. The test scores of four students selected at random are 1890, 1210, 2190. and 1350. Find the z-scores that correspond to each value and determine whether any of the values are unusual. Tne z-score Tor 1090 IS (Round to two decimal places as needed.) The z-score for 1210 is (Round to two decimal places as needed.) The z-score for 2190 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. O A. The unusual value(s) islare (Use a comma to separate answers as needed.) O B. None of the values are unusual. Click to select your answer(s). P Type here to search a 1:44 PM 易 4/11/2021 99+ 22 B6 144 ho wsert DIt sc esc & %24 4. %23 - backspats home 2. 3. 6. 9. Y tab enter F J K L caps lock pause 71 V B M. shift alt ctri
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