KIQ scores are normally distributed with a mean of 95 and a standard deviation of 18. Assume that many samples of size nare taken from a large population of people and the mean IQ score is computed for each sample.184Ra. If the sample size is n = 36, find the mean and standard deviation of the distribution of sample means.The mean of the distribution of sample means is 95000000F4The standard deviation of the distribution of sample means is 3(Type an integer or decimal rounded to the nearest tenth as needed.)b. If the sample size is n = 121, find the mean and standard deviation of the distribution of sample means.The mean of the distribution of sample means is 95The standard deviation of the distribution of sample means is(Type an integer or decimal rounded to the nearest tenth as needed.)OCTO 15%5TF5N6TIPF6HMacBook AirY♫&7Ⓒ◄◄F7U√√ L. () Moretv* 08SDIIF8.9I9AF9ZAOF10BP-&F11W

Answered: go and a standard de K IQ scores are…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1466 and the standard deviation was 315. The test scores of four students selected at random are 1890, 1210, 2200, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The Z-score for 1890 is. (Round to two decimal places as needed.).
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1539 and the standard deviation was 315. The test scores of four students selected at random are 1940, 1290, 2240, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1940 is. (Round to two decimal places as needed.) The Z-score for 1290 is. (Round to two decimal places as needed.) The Z-score for 2240 is. (Round to two decimal places as needed.) The Z-score for 1420 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. OA. The unusual value(s) is/are. CD (Use a comma to separate answers as needed.) OB. None of the values are unusual.
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1506 and the standard deviation was 317. The test scores of four students selected at random are 1940, 1230, 2190, and 1400. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1940 is. (Round to two decimal places as needed.)

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