MATH 110 MODULE 8 EXAM ACCURATE AND
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Question 1
pts
You may find the following files helpful throughout the exam:
Statistics_Equation_Sheet
standard normal table
t-table
Suppose we have independent random samples of size n1 = 520 and n2 = 450. The
proportions of success in the two samples are p1= .65 and p2 = .52. Find the 95%
confidence interval for the difference in the two population proportions.
Answer the following questions:
1. Multiple choice: Which equation would you use to solve this problem?
,2|Page
A.
B.
, 3|Page
C.
D.
List the values you would insert into that equation.
State the final answer to the problem
Your Answer:
I would choose B
P1 = .65 P 2= .52 n1 =520 n2 = 450
.65-.52 +/- 1.96
.65