15 Jan c. Compute expected frequency for the
Analysis Assignment #2
50 points
Due: December 11th, 2016 11:59 p.m.
Student Name: ______________________________
Submission Date: _________________
Instructions:
Rename this file as first initial_lastname_assignment2_mmddyyyy. Provide your answer underneath each question. You must upload the renamed file with your answer to the Assignment 2 tab inside the class Blackboard by the deadline.
1. In a sample of 140 hospitalized older adults, the individuals were cross-classified by their cognitive impairment status and whether they had an incidence of fall, and an association was tested between the two classification factors.(6 points)
Fall?
Total
Yes
No
Cognitive Impairment?
Yes
Count
% (within impairment)
% (within fall)
10
25.0%
50.0%
30
75.0%
25.0%
40
100.0%
No
Count
% (within impairment)
% (within fall)
10
10.0%
50.0%
90
90.0%
75.0%
100
100.0%
Total
Count
% (within impairment)
% (within fall)
20
14.3%
100.0%
120
85.7%
100.0%
140
100.0%
100.0%
Chi-square (df=1) = 5.25, p-value = 0.022
Answer the following questions based on the data above.
a. What percentage of elders in this sample had a fall? (2 points)
I.14.3%
II. 20.0%
III. 25.0%
IV. 85.7%
b. Is there an evidence of association between cognitive status and incidence of fall? Support your answer with a statistic.(2 points)
c. Compute expected frequency for the cell with cognitive impairment and fall.(2 points)
2. The following correlation matrix represents relationships among social variables. These data w
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteEdu. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
Do you need help with this question?
Get assignment help from WriteEdu.com Paper Writing Website and forget about your problems.
WriteEdu provides custom & cheap essay writing 100% original, plagiarism free essays, assignments & dissertations.
With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Chat with us today! We are always waiting to answer all your questions.