Each of the following three data sets represents the IQ scores of a random sample of adults.IQ scores are known to have a mean and median of 100. For each data set, determine thesample standard deviation. Then recompute the sample standard deviation assuming that theindividual whose IQ is 108 is accidentally recorded as 180. For each sample size, state whathappens to the standard deviation. Comment on the role that the number of observationsplays in resistance.For each data set, compute the standard deviation.What is the standard deviation of the sample of size 5?(Type an integer or decimal rounded to one decimal place as needed.)E Click the icon to view the three data sets. Full data setSample of Size 5110 118 10010891Sample of Size 12110 118 100 10495108919492116 114 116Sample of Size 3010891110 118 100 104949592116 114 116116 113110 115 1141189393119 113 9810695118 116 | 11599

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Answered: For each data set, compute the standard…

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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Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.05 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. X A. Ho: H₁ H₂ H₁ H₁ H₂ c. Ho: M₁ = H₂ H₁: H₁ H₂ The test statistic is 0.56. (Round to two decimal places as needed.) The P-value is (Round to three decimal…

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For each data set, compute the standard deviation. What is the standard deviation of the sample of size 5? (Type an integer or decimal rounded to one decimal place as needed.)