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4. The following table shows the average mumber of words a random sample of five-year-old girls and boys were able to recognize. Assume the populations from which the samples are taken are normally distributed but the variances of the populations are unequal. Men Women Sample mean Sample size Sample standard deviation 26.6 20.1 11 12 7.3 3.9 Is there a statistically significant difference between the average number of words recog- nized by five-year-old girls and five-year-old boys when a = 0.05?

4. The following table shows the average mumber of words a random sample of five-year-old girls and boys were able to recognize. Assume the populations from which the samples are taken are normally distributed but the variances of the populations are unequal. Men Women Sample mean Sample size Sample standard deviation 26.6 20.1 11 12 7.3 3.9 Is there a statistically significant difference between the average number of words recog- nized by five-year-old girls and five-year-old boys when a = 0.05?

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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4. The following table shows the average number of words a random sample of five-year-old girls and boys were able to recognize. Assume the populations from which the samples are taken are normally distributed but the variances of the populations are unequal. Men Women Sample mean Sample size Sample standard deviation 26.6 20.1 11 12 7.3 3.9 Is there a statistically significant difference between the average number of words recog- nized by five-year-old girls and five-year-old boys when a = 0.05?
Transcribed Image Text:4. The following table shows the average number of words a random sample of five-year-old girls and boys were able to recognize. Assume the populations from which the samples are taken are normally distributed but the variances of the populations are unequal. Men Women Sample mean Sample size Sample standard deviation 26.6 20.1 11 12 7.3 3.9 Is there a statistically significant difference between the average number of words recog- nized by five-year-old girls and five-year-old boys when a = 0.05?
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