Study conducted on the school children IQ score of control group and dexamethasone group are found have different standard deviation. The result reported in this study was that the control group of 32 children had a mean IQ score of 25.8 with standard deviation of 9.2 whereas the dexamethasone group 20 children had a mean IQ score of 22.1 with standard deviation of 5.7. . a) At 1% significance level do the data provide sufficient evidence to conclude the dexamethasone group has more effect on IQ score after therapy. b) Find a 98% confidence interval for the difference between the mean IQs of school- age children without and with dexamethasone therapy.

Study conducted on the school children IQ score of control group and dexamethasone group are found have different standard deviation. The result reported in this study was that the control group of 32 children had a mean IQ score of 25.8 with standard deviation of 9.2 whereas the dexamethasone group 20 children had a mean IQ score of 22.1 with standard deviation of 5.7. . a) At 1% significance level do the data provide sufficient evidence to conclude the dexamethasone group has more effect on IQ score after therapy. b) Find a 98% confidence interval for the difference between the mean IQs of school- age children without and with dexamethasone therapy.

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Description: Study conducted on the school children IQ score of control group and dexamethasonegroup are found have different standard deviation. The result reported in this studywas that the control group of 32 children had a mean IQ score of 25.8 with 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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