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) The SAT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 1481 and the standard deviation was 292. The test scores of four students selected at random are 1930, 1340, 2150, and 1450. a) Find the z-scores that correspond to each value b) Determine whether any of the values are unusual.

) The SAT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 1481 and the standard deviation was 292. The test scores of four students selected at random are 1930, 1340, 2150, and 1450. a) Find the z-scores that correspond to each value b) Determine whether any of the values are unusual.

MATLAB: An Introduction with Applications
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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1 1 2. SHORT the or phrase that best each or the question. ANSWER. Write the word or phrase that best completes each statement or answers the question. ) The SAT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 1481 and the standard deviation was 292. The test scores of four students selected at random are 1930, 1340, 2150, and 1450. 5) a) Find the z-scores that correspond to each value b) Determine whether any of the values are unusual. %3D 6) 0) Use the standard normal distribution to find P(-2.25 <z < 1.25). A) 0.0122 B) 0.8822 C) 0.8944 D) 0.4878 5 Use the standard normal distribution to find P(-2.25 < z < 0). A) 0.4878 B) 0.0122 7) C) 0.5122 D) 0.6831 8) Use the standard normal distribution to find P(z < -2.33 or z > 2.33). A) 0.7888 B) 0.0198 8) D) 0.9802 90900 0 9) For the standard normal curve, find the z-score that corresponds to the third quartile. A) -0.67 B) 0.77 C) 0.67 (6 D) -0.23 10) For the standard normal curve, find the z-score that corresponds to the first decile. A) 1.28 B) 0.16 C) -2.33 10) D) -1.28 11) Determine whether the graph could represent a variable with a normal distribution. Explain your reasoning. Curve. standard normal A) No, the graph is not symmetric. PI Yes the graph fulfills the properties of the normal distribution C) No, the graph is skewed right. D) No, the graph crosses the x-axis.
Transcribed Image Text:1 1 2. SHORT the or phrase that best each or the question. ANSWER. Write the word or phrase that best completes each statement or answers the question. ) The SAT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 1481 and the standard deviation was 292. The test scores of four students selected at random are 1930, 1340, 2150, and 1450. 5) a) Find the z-scores that correspond to each value b) Determine whether any of the values are unusual. %3D 6) 0) Use the standard normal distribution to find P(-2.25 <z < 1.25). A) 0.0122 B) 0.8822 C) 0.8944 D) 0.4878 5 Use the standard normal distribution to find P(-2.25 < z < 0). A) 0.4878 B) 0.0122 7) C) 0.5122 D) 0.6831 8) Use the standard normal distribution to find P(z < -2.33 or z > 2.33). A) 0.7888 B) 0.0198 8) D) 0.9802 90900 0 9) For the standard normal curve, find the z-score that corresponds to the third quartile. A) -0.67 B) 0.77 C) 0.67 (6 D) -0.23 10) For the standard normal curve, find the z-score that corresponds to the first decile. A) 1.28 B) 0.16 C) -2.33 10) D) -1.28 11) Determine whether the graph could represent a variable with a normal distribution. Explain your reasoning. Curve. standard normal A) No, the graph is not symmetric. PI Yes the graph fulfills the properties of the normal distribution C) No, the graph is skewed right. D) No, the graph crosses the x-axis.
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