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1. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 91 and a standard deviation of 6.59. What is the lower bound of the 90% confidence interval of the average IQ of the kindergarten pupils? 2. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 94 and a standard deviation of 6.58. What is the margin of error of the 90% confidence interval of the average IQ of the kindergarten pupils? Note: Round your answer to 4 decimal places.

1. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 91 and a standard deviation of 6.59. What is the lower bound of the 90% confidence interval of the average IQ of the kindergarten pupils? 2. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 94 and a standard deviation of 6.58. What is the margin of error of the 90% confidence interval of the average IQ of the kindergarten pupils? Note: Round your answer to 4 decimal places.

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. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 91 and a standard deviation of 6.59. What is the lower bound of the 90% confidence interval of the average IQ of the kindergarten pupils? 2. On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a resulting mean of 94 and a standard deviation of 6.58. What is the margin of error of the 90% confidence interval of the average IQ of the kindergarten pupils? Note: Round your answer to 4 decimal places.
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