In a random sample of ten people, the mean driving distance to work was 23.2 miles and the standard deviation was 7.4 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a95% confidence interval for the population mean u. Interpret the results.Identify the margin of error.5.3 miles(Round to one decimal place as needed.)Construct a 95% confidence interval for the population mean.(Round to one decimal place as needed.)

Given,sample size(n)=10sample mean(x¯)=23.2standard deviation(S)=7.4degrees of…

Answered: In a random sample of ten people, the…

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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Assume that adults have IQ scores that are normally distributed with a mean of 102.1 and a standard deviation 16.3. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.)
Given the following mean and standard deviation, find the z-score for each individual score. Find the difference between the data value and the mean then divide by the standard deviation. X = 10 a. X= 8 s = 2 Z = %3D b. X= 38 X = 40 s = 5 Z = С. X%3D94 X = 100 s = 10 z = d. X= 65 X = 50 s = 10 Z = %3D e. X= 30 X = 25 s = 5 Z =
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