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An experiment is done to determine whether eating sugary breakfast cereals has a negative effect on chidren's learning One group of 10 children eats Cheerios every morning, whereas another group of 15 children eats Super-Chocolate-Frosted-Sugar-Bombs. Each afternoon the children are given basic skils tests to measure their leaming for the day. The test scores for the Cheerios group has i 80 and standard deviation 5.9 The test scores for the Sugar-Bombs group has 79 and s5.1.

An experiment is done to determine whether eating sugary breakfast cereals has a negative effect on chidren's learning One group of 10 children eats Cheerios every morning, whereas another group of 15 children eats Super-Chocolate-Frosted-Sugar-Bombs. Each afternoon the children are given basic skils tests to measure their leaming for the day. The test scores for the Cheerios group has i 80 and standard deviation 5.9 The test scores for the Sugar-Bombs group has 79 and s5.1.

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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An experiment is done to determine whether eating sugary breaktant cereals has a negative effect on children's learning One group of 10 children eats Cheerios every morning, whereas another group of 15 children eats Super-Chocolate-Frosted-Sugar-Bombs. Each afternoon the chilidren are given basic skills tests to measure their learning for the day. The test scores for the Cheerios group has i = 80 and standard deviation s5.9. The test scores for the Sugar-Bombs group has k - 79 and s,5.1. Give a 98% confidence intervai for the mean diference in test ncores between the children who eat Cheerios versus Sugar Bombs. (n) The degrees of freedom using the conservative approach is: df- (b) What is the value of r" for a 98% contidence interval? r- (give at least three digits after the decimal pont. (c) The confidence interval is from to
Transcribed Image Text:An experiment is done to determine whether eating sugary breaktant cereals has a negative effect on children's learning One group of 10 children eats Cheerios every morning, whereas another group of 15 children eats Super-Chocolate-Frosted-Sugar-Bombs. Each afternoon the chilidren are given basic skills tests to measure their learning for the day. The test scores for the Cheerios group has i = 80 and standard deviation s5.9. The test scores for the Sugar-Bombs group has k - 79 and s,5.1. Give a 98% confidence intervai for the mean diference in test ncores between the children who eat Cheerios versus Sugar Bombs. (n) The degrees of freedom using the conservative approach is: df- (b) What is the value of r" for a 98% contidence interval? r- (give at least three digits after the decimal pont. (c) The confidence interval is from to
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