Answered: A sample of 200 individuals are tested…

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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Question

A sample of 200 individuals are tested for their blood type is given in the first table, and the results are used to test the hypothesized distribution of blood types. The observed results are given in the second table. At the .05 level of significance, is there sufficient evidence to show that the stated distribution is incorrect?

Blood Type	Â Â A Â Â	Â Â B Â Â	Â Â O Â Â	Â Â AB Â Â
Percent	0.4	0.06	0.39	0.15

Blood Type	Â Â A Â Â	Â Â B Â Â	Â Â O Â Â	Â Â AB Â Â
Number	73	19	89	19

(a) Find the test statistic. (Give your answer correct to two decimal places.)

(ii) Find the p-value. (Give your answer bounds exactly.)
< p <
(b) State the appropriate conclusion.

Reject the null hypothesis, there is significant evidence that the stated distribution is incorrect.Reject the null hypothesis, there is not significant evidence that the stated distribution is incorrect. Fail to reject the null hypothesis, there is significant evidence that the stated distribution is incorrect.Fail to reject the null hypothesis, there is not significant evidence that the stated distribution is incorrect.

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