Researchers investigated the issue of race and equality of access to clinical trials. The table below shows the population distribution and the number of participants in the clinical trials involving lung cancer. Use a 0.01 significance level to test the claim that the distribution of clinical trial participants fits well with the population distribution. Race/Ethnicity White Non-Hispanic Hispanic Black Asian/Pacific Islander American Indian/Alaskan Native Distribution of Population 75.6% 9.1% 10.8% 3.8% 0.7% Number in Lung Cancer Clinical Trials 3855 60 316 54 12 Complete the table below based on Problem. Note that do not round off on the whole computation of this problem. But please type the answers on the table by rounding it off to 2 decimal places. Hence, the answers on the table are rounded off to 2 decimal places but the process of computing this based on your solutions does not involve any rounding off. If the answer is negative, do not forget the negative sign. If the answer is in thousands, do not write any comma. Race/Ethnicity Observed Frequency (O) Expected Probability (E) Expected Frequency (E = np) ( O − E ) ( O − E ) 2 ( O − E ) 2 E White Non-Hispanic 3855 0.756 3248.5532 367803 113.221 Hispanic 60 0.091 391.027 109579 280.234 Black 316 0.108 464.076 21926.5 47.2477 Asian/Pacific Islander 54 0.038 163.286 11943.4 73.1442 American Indian/Alaskan Native 12 0.007 30.079 326.85 10.8664 Total Total Computed Chi-square value: 524.713 what is the conclusion of the study? At least one of the proportions is not equal to the given claimed values. The frequency counts do not agree with the claimed distribution. The frequency counts agree with the claimed distribution.

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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Researchers investigated the issue of race and equality of access to clinical trials. The table below shows the population distribution and the number of participants in the clinical trials involving lung cancer. Use a 0.01 significance level to test the claim that the distribution of clinical trial participants fits well with the population distribution.

Race/Ethnicity	White Non-Hispanic	Hispanic	Black	Asian/Pacific Islander	American Indian/Alaskan Native
Distribution of Population	75.6%	9.1%	10.8%	3.8%	0.7%
Number in Lung Cancer Clinical Trials	3855	60	316	54	12

Complete the table below based on Problem. Note that do not round off on the whole computation of this problem. But please type the answers on the table by rounding it off to 2 decimal places. Hence, the answers on the table are rounded off to 2 decimal places but the process of computing this based on your solutions does not involve any rounding off. If the answer is negative, do not forget the negative sign. If the answer is in thousands, do not write any comma.

Race/Ethnicity	Observed Frequency (O)	Expected Probability (E)	Expected Frequency (E = np)	( O − E )	( O − E ) 2	( O − E ) 2 E
White Non-Hispanic	3855	0.756	3248.5532		367803	113.221
Hispanic	60	0.091	391.027		109579	280.234
Black	316	0.108	464.076		21926.5	47.2477
Asian/Pacific Islander	54	0.038	163.286		11943.4	73.1442
American Indian/Alaskan Native	12	0.007	30.079		326.85	10.8664
Total					Total	Computed Chi-square value: 524.713

what is the conclusion of the study?

At least one of the proportions is not equal to the given claimed values.

The frequency counts do not agree with the claimed distribution.

The frequency counts agree with the claimed distribution.

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