Assume a standardized IQ test exists that possesses a normal distribution and has a mean scoreof 100 with a standard deviation of 10. Answer the following questions:1. What is the z score for an IQ score of 95 (use the provided z-score table on pg.4)?You will now need to use Table A2 in your text to answer the following questions: What is theprobability of selecting someone from the general population at random who would:2. Score between 95 and 100? The following is a list of z-scores for two different IQ tests. The table on the LEFT is for an IQtest with a mean score of 100 and a Standard Deviation (SD) of 10. The table on the RIGHTis for an IQ test with a mean score of 100 and a SD of 5.IQ Scorez-Score75 -2.576 -2.477 -2.378 -2.279 -2.180 -2.081 -1.982 -1.883 -1.784 -1.685-1.586 -1.487-1.388 -1.289-1.190 -1.091 -0.992 -0.893 -0.794 -0.695 -0.596 -0.497-0.398 -0.299 -0.1100 0101 0.1102 0.2103 0.3104 0.4105 0.5106 0.6107 0.7108 0.8109 0.9110 1.0111 1.1112113 1.3114 1.4115 1.5IQ Score75767778798081828384858687888990919293949596979899100101102103104105106107108109110111113114115z-Score-5.0-4.8-4.6-4.4-4.2-4.0-3.8-3.6-3.4-3.2-3.0-2.8-2.6-2.4-2.2-2.0-1.8-1.6-1.4-1.2-1.0-0.8-0.6-0.4-0.200.20.40.60.81.01.21.41.61.82.02.22.42.6№2.83.0

Answer:- Given, Assume a standardized IQ test exists that possesses a normal distribution and has a…

Answered: Assume a standardized IQ test exists…

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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Consider a test whose scores have a normal distribution, a mean of 100, and a standard deviation of 11. Find the lowest score a person would need to be in each of the following top percentages. (a) 3% (b) 9% Click here to view page 1 of the Normal Curve Areas. Click here to view page 2 of the Normal Curve Areas. Click here to view page 3 of the Normal Curve Areas. Click here to view page 4 of the Normal Curve Areas.
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2. All students in a physical education class completed a basketball free-throw shooting event and the highest number of shots made was 32. The next day a student who had just transferred into the school completed the event, making 35 shots. Indicate whether adding the new student's score to the rest of the data made each of these summary statistics increase, decrease, or stay about the same: а. mean b. median с. range d. IQR e. standard deviation
) Tom scored a 122 on a measure of math ability and a 39 on a measure of verbal ability. The means and standard deviations on the measure of math ability and verbal ability are M = 105, s = 15 and M = 36, s = 2.95, respectively. In which area did Tom do better?
In her class in Statistics, Miss Ped told the students that they need a grade in the top 10% of the class to get an A in a particular test. In the standardization of the test, the mean was 70 and the standard deviation was 12. Assuming that the grades would be normally distributed, what must be the minimum grade needed to obtain an A? Round off answers to the nearest whole number. Blank 1
Mr. Jackson is looking at test scores for his Algebra 2 class. The scores on the Unit 2 Test follow a normal distribution, with a mean of 89 and a standard deviation of 3. What percent of learners scored 86 or better?
Use the following data to answer the problem below. Subject Ms MIS Chemistry 70 12 Math 28 7 Assuming the distribution of the above scores is normal, the percentage of people who scored within 1 standard deviation of the mean is [blank]. Hint: no specific direction
C6. When taking a random sample from a very large population, how does the standard error of the mean change when a. the sample size is increased from 100 to 1,600? b. the sample size is decreased from 300 to 150? c. the sample size is multiplied by 4?
A quantitative data set has size 50. At least how many observations lie within three standard deviations to either side of the mean?
Using z scores, a population with u = 37 and o = 6 is standardized so that the new mean is u = 55 and o = 2. After the standardization, one individual has a score of X = 55. What was this individual’s score in the original distribution?
A sample of n = 15 scores has a mean of M = 6. One person with a score of X = 22 is added to the sample. What is the value for the new sample mean?
2. The mean of a statistics examination is 77.0. a. If your score is 85, would you prefer the standard deviation to be large or small for purposes of getting a better grade? Why? b. If your score is 69, would you prefer the standard deviation to be large or small? Why?

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