1:21K(a) % (Type an integer or a decimal.)Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 18. Use theempirical rule to determine the following.(a) What percentage of people has an IQ score between 82 and 118?(b) What percentage of people has an IQ score less than 82 or greater than 118?(c) What percentage of people has an IQ score greater than 136?|||=LTE 2.1 4GO52%

Answered: K Scores of an IQ test have a…

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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Given that the mean score is 80 and the standard deviation is 6. What z-score corresponds to the score of 76? -1.67 1.67 0.67 -0.67 2000
The average daily high temperature in degrees Celsius (C) during the month of July was recorded for the 51 largest cities in the United States. Summary measures are shown below. Mean 30.84 Standard Deviation 3.78 Median IQR 31 5 Range 22 Which of the following represents the median and interquartile range (IQR) of these average daily high temperatures in degrees Fahrenheit (F), where F = (3) C + 32? (A) Median = 52.8°F, IQR = 9°F (B) Median = 52.8°F, IQR = 41°F (C) Median 87.8°F, IQR = 5°F (D) Median = 87.8°F, IQR = 9°F (E) Median 87.8°F, IQR = 41°F
The scores for an intelligence test are normally distributed with a mean of 102 and a standard deviation of 18. What is the minimum test score necessary to place someone in the upper 9% of the population? Round to one decimal place.
I Professor Brown administered an achievement test, which as he remembers from years of experience, yielded a population mean score of 85. If his class of 25 students obtained a mean score of 89 with standard deviation score of 14, can the professor claim that his class is a superior class? Assume that the mean score is approximately normally distributed. Use a = 0.01
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The distribution of heights in a population of women is approximately normal. Sixteen percent of the women have heights less than 62 inches. About 97.5% of the women have heights less than 71 inches. Use the empirical rule to estimate the mean and standard deviation of the heights in this population. Mean: K inches Standard Deviation: inches
26)
This C The weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a standard deviation of 40 grams. Use the empirical rule to determine the folowing (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 230 grams and 390 grams? (c) What percentage of organs weighs less than 230 grams or more than 390 grams? (d) What percentage of organs weighs between 270 grams and 430 grams? (a) and grams (Use ascending order.) (b)% (Type an integer or a decimal.) (c) % (Type an integer or a decimal.) (d) % (Type an integer or decimal rounded to two decimal places as needed.) Enter your answer in each of the answer boxes. e Type here to search 近
This list of test scores has a mean of 50. Estimate whether the standard deviation is closest to 0, 1, 2 or 10. (This problem requires NO arithmetic - instead, I'm looking at your intuition about standard deviation) 12, 25, 14, 17, 12, 13, 12 (a) 0 (b) 1 (c) 2 (d) 10
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The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population standard deviation of 20. What is the probability we could select a sample of 20 adults and find the mean of this sample is less than 95? 0.1314 0.7372 0.3686 0.7098

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