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1. Human blood is grouped into four types: A, B, AB, and O. The per- cents of Americans with each type are as follows: 0, 43%; A, 40%; B, 12%; and AB, 5%. At a recent blood drive at a large university, the donors were classified as shown below. At the 0.05 level of significance, is there sufficient evidence to conclude that the proportions differ from those stated above? ОАВАВ 60 65 15 10

1. Human blood is grouped into four types: A, B, AB, and O. The per- cents of Americans with each type are as follows: 0, 43%; A, 40%; B, 12%; and AB, 5%. At a recent blood drive at a large university, the donors were classified as shown below. At the 0.05 level of significance, is there sufficient evidence to conclude that the proportions differ from those stated above? ОАВАВ 60 65 15 10

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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Please answer A B C
(a) What conditions should you check first before you conduct the hypothesis test?
(b) Write the null and alternative hypotheses.
(c) What type of test are you doing: right-tailed, left-tailed or two-tailed?
(d) What formula should be used for the test statistic?
(e) What number is the test statistic equal to?
(f) Sketch a graph of the p-value
(g) What p-value do you obtain? Round to the ten-thousandths.
(h) Do you reject the null hypothesis or fail to reject the null hypothesis? Explain.
(i) Please write a conclusion sentence, in the context of the problem, that explains to a lay person the result of the hypothesis
test.

1. Human blood is grouped into four types: A, B, AB, and O. The per- cents of Americans with each type are as follows: O, 43%; A, 40%; B, 12%; and AB, 5%. At a recent blood drive at a large university, the donors were classified as shown below. At the 0.05 level of significance, is there sufficient evidence to conclude that the proportions differ from those stated above? O A B ОАВАВ 60 65 15 10
Transcribed Image Text:1. Human blood is grouped into four types: A, B, AB, and O. The per- cents of Americans with each type are as follows: O, 43%; A, 40%; B, 12%; and AB, 5%. At a recent blood drive at a large university, the donors were classified as shown below. At the 0.05 level of significance, is there sufficient evidence to conclude that the proportions differ from those stated above? O A B ОАВАВ 60 65 15 10
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