MATH 110 Module 8: Exam / Latest Updated/ Guaranteed A+ Score

MATH 110 Module 8: Exam - Requires Respondus
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Due No due date Points 50 Questions 5 Time Limit 90 Minutes Requires Respondus
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Instructions
You may only have the following items when taking an exam: computer, 1-2 pieces of blank
scratch paper, a pen/pencil, and a calculator.

You may ONLY use the equation sheets that are provided WITHIN the exam. The use of printed
versions will be considered a violation of the Academic Integrity Policy.




Attempt History
Attempt Time Score
LATEST Attempt 1 63 minutes 0 out of 50 *

* Some questions not yet graded



Score for this quiz: 0 out of 50 *
Submitted Aug 24 at 1:04am
This attempt took 63 minutes.


Question 1 Not yet graded / 10 pts



You may find the following files helpful throughout the exam:

Statistics_Equation_Sheet
(https://previous.nursingabc.com/upload/images/Help_file_picture/Statistics_

standard normal table
(https://previous.nursingabc.com/upload/images/Help_file_picture/standardn

t-table
(https://previous.nursingabc.com/upload/images/Help_file_picture/t-
table.pdf)

1/20

,Suppose we have independent random samples of size n 1 = 615 and n2 =
505. The proportions of success in the two samples are p 1= .53 and p2 =
.45. Find the 90% 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?


A.




B.




C.




D.




2. List the values you would insert into that equation.

3. State the final answer to the problem


Your Answer:

1. B

2. P1 =0.53, P2=0.45, n1 = 615, n2 = 505, z = 1.645

3. (0.129, 0.031)

2/20

, From table 6.1, we see that 90% confidence corresponds to
z=1.645. Notice that the sample sizes are each greater than 30,
so we may use eqn. 8.2:



B.




So, the interval is (.03065,.12935).




Question 2 Not yet graded / 10 pts




3/20