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Based on information from Harper’s Index, 78 out of a random sample of 100 American adults claim that they would donate a loved one’s organs after death. However, out of a random sample of 100 adult Americans, only 20 claim that they would donate their ow

Based on information from Harper’s Index, 78 out of a random sample of 100 American adults claim that they would donate a loved one’s organs after death. However, out of a random sample of 100 adult Americans, only 20 claim that they would donate their own organs after death.a. State the hypotheses and test the claim that the proportion of adult American who would donate a loved one’s organs is higher. Use a=0.01
b. Find the critical value.
c. State your conclusion from the hypothesis test.


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Answer #1

Using TI 84 calculator

press stat then tests and then select 2-PropZTest

enter the data

x1 = 78, n1 = 100

x2 = 20, n2 = 100

p1>p2

press ENTER

we get

test statistic = 8.204

p value= 0.0000

p value is significant for 0.01 as well as 0.05 significance level

We will reject null hypothesis and we can say that there is sufficient evidence to conclude that the proportion of adult Americans who would donate a loved one’s organs is higher


answered by: junaid javaid
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