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2. A breast cancer research team collected the following data on tumor size: Type of Tumor 72 A 17 B 14 I 8 1.95 cm 3.85 cm 2.80 cm 1.70 cm (a) Construct a 99% confidence interval for the difference between the mean sizes of the two types of tumor. Assume normal population and equal variances. (b) Can we conclude that there is no difference in the sizes of the two types of tumor based on the confidence interval from (a)? Why?

2. A breast cancer research team collected the following data on tumor size: Type of Tumor 72 A 17 B 14 I 8 1.95 cm 3.85 cm 2.80 cm 1.70 cm (a) Construct a 99% confidence interval for the difference between the mean sizes of the two types of tumor. Assume normal population and equal variances. (b) Can we conclude that there is no difference in the sizes of the two types of tumor based on the confidence interval from (a)? Why?

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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2. A breast cancer research team collected the following data on tumor size: Type of Tumor 72 A 17 B 14 3.85 cm 2.80 cm 8 1.95 cm 1.70 cm (a) Construct a 99% confidence interval for the difference between the mean sizes of the two types of tumor. Assume normal population and equal variances. (b) Can we conclude that there is no difference in the sizes of the two types of tumor based on the confidence interval from (a)? Why?
Transcribed Image Text:2. A breast cancer research team collected the following data on tumor size: Type of Tumor 72 A 17 B 14 3.85 cm 2.80 cm 8 1.95 cm 1.70 cm (a) Construct a 99% confidence interval for the difference between the mean sizes of the two types of tumor. Assume normal population and equal variances. (b) Can we conclude that there is no difference in the sizes of the two types of tumor based on the confidence interval from (a)? Why?
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