Recent publications have addressed the growing concern in the scientific community around the increased prevalence of CAT scans in children between the ages of 7-18 and the growing rate of childhood cancers. Suppose the researcher plans to gather a SRS from a group of children in this age range who have received one or more CAT scans, and a SRS from a group of children who have never received a CAT scan and compare the number of cases of childhood cancers that develop over a prolonged period of time. Assume the following table summarizes the descriptive statistics for his samples.PopulationAverage cases of childhood cancersStandard deviaton Sample size>CAT scan24.62.41,894No CAT scans11.41.92,745A) Carry out the appropriate statistical test to answer the researcher’s hypothesis regarding the difference in average cases of childhood cancers in children aged 7-18 receiving one or more CAT scans versus those that have never received a CAT scan. Use an alpha level of 0.05. Do not use the equal variance assumption. Write out your alternative and null hypotheses, and interpret your results.B) Construct a 95% confidence interval for the average difference in childhood cancer cases between the two groups. Interpret your interval.

A). Null hypothesis Ho : u1 = U2. Alternate hypothesis Ha: u1 not equal to u2 Since the population…

Answered: A) Carry out the appropriate…

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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Recent publications have addressed the growing concern in the scientific community around the increased prevalence of CAT scans in children between the ages of 7-18 and the growing rate of childhood cancers. Suppose the researcher plans to gather a SRS from a group of children in this age range who have received one or more CAT scans, and a SRS from a group of children who have never received a CAT scan and compare the number of cases of childhood cancers that develop over a prolonged period of time. Assume the following table summarizes the descriptive statistics for his samples.

Population	Average cases of childhood cancers	Standard deviaton	Sample size
>CAT scan	24.6	2.4	1,894
No CAT scans	11.4	1.9	2,745

A) Carry out the appropriate statistical test to answer the researcher’s hypothesis regarding the difference in average cases of childhood cancers in children aged 7-18 receiving one or more CAT scans versus those that have never received a CAT scan. Use an alpha level of 0.05. Do not use the equal variance assumption. Write out your alternative and null hypotheses, and interpret your results.

B) Construct a 95% confidence interval for the average difference in childhood cancer cases between the two groups. Interpret your interval.

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