Confidence Intervals

Please only reply if you understand how to accomplish this assignment… please see attachment 

Week 3 – Assignment

This tool needs to be loaded in a new browser window

Confidence Intervals

In this week’s reading, we discussed different types of samples, their distributions, sampling errors,

probabilities, and confidence intervals. Using the appropriate support tool, sequence, and equations,

complete Problem 33 in Chapter 8 on page 351.

Problem 8-33. You have been assigned to determine whether more people prefer Coke or Pepsi.

Assume that roughly half the population prefers Coke and half prefers Pepsi. How large a sample do

you need to take to ensure that you can estimate, with 95% confidence, the proportion of people

preferring Coke within 2% of the actual value?Show work.

Carefully review the Grading Rubric

(http://ashford.waypointoutcomes.com/assessment/20455/preview) for the criteria that will be used to

evaluate your assignment.

Waypoint Assignment

Submission

The assignments in this course will be submitted to Waypoint. Please refer to the instructions below to

submit your assignment.

1. Click on the Assignment Submission button below. The Waypoint “Student Dashboard” will open

in a new browser window.

2. Browse for your assignment.

3. Click Upload.

4. Confirm that your assignment was successfully submitted by viewing the appropriate week’s

assignment tab in Waypoint.

For more detailed instructions, refer to the Waypoint Tutorial

(https://bridgepoint.equella.ecollege.com/curriculum/file/dc358708-3d2b-41a6-a000-

ff53b3cc3794/1/Waypoint%20Tutorial )

(https://bridgepoint.equella.ecollege.com/curriculum/file/dc358708-3d2b-41a6-a000-

ff53b3cc3794/1/Waypoint%20Tutorial ) .

The session for this tool has expired. Please reload the page to access the tool again