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
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