Name
Date
Course
Section
HLT362v
EXERCISE 18
Understanding Analysis of Variance (ANOVA) and Post Hoc Analyses
1. Mayland et al. (2014) do not provide the degrees of freedom (df) in their study. Use the degrees of
freedom formulas provided at the beginning
Name
Date
Christina Pich
03/01/17
Course
Section
HLT362v
EXERCISE 16
Understanding Independent Samples t-Test
1. What do degrees of freedom (df ) mean? Canbulat et al. (2015) did not provide the dfs in their study.
Why is it important to know the df for a
Name
Date
Christina Pich
02/25/17
Course
Section
HLT362v
EXERCISE 26
Determining the Normality of a Distribution
1. Plot the frequency distribution for Age at Enrollment by hand or by using SPSS.
2. How would you characterize the skewness of the distribut
Name
Date
Christina Pich
02/25/17
Course
Section
HLT362v
EXERCISE 10
Description of a Study Sample
1. What demographic variables were measured at the nominal level of measurement in the Oh et al.
(2014) study? Provide a rationale for your answer.
The nomi
Name
Date
Christina Pich
03/01/17
Course
Section
HLT362v
EXERCISE 31
Calculating t-tests for Independent Samples
1. Do the example data meet the assumptions for the independent samples t-test? Provide a rationale
for your answer.
The assumptions are:
1. S
Name
Date
Christina Pich
02/18/17
Course
Section
HLT362v
EXERCISE 27
Calculating Descriptive Statistics
1. What is the mean age of the sample data?
Descriptive Statistics
N
Minimum
Age
10
Valid N (listwise)
10
Maximum
35
86
Mean
Std. Deviation
56.50
19.26
Name: Aubrey Kennedy
Date: 9/25/2016
Topic 2: Population and Sampling
Distribution Excel Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100,
and a standard deviat
Complete Exercise 36 in Statistics for Health Care Research: A Practical Workbook.
In order to receive full credit on calculated answers, please show your work. (Use Word's
equation editor, etc., and/or provides a short written description as to how you o
Complete Exercise 23 and 24 in Statistics for Health Care Research: A Practical Workbook.
In order to receive full credit on calculated answers, please show your work. (Use Word's
equation editor, etc., and/or provides a short written description as to ho
Name: Aubrey Kennedy
Date: 10/1/2016
Hypothesis Testing
Answer each question completely to recieve full credit
1. There is a new drug that is used to treat leukemia. The following data
represents the remission time in weeks for a random sample of 21
patie
Aubrey Kennedy
Exercises 11 and 16
HLT-362V-0503
September 18, 2016
Exercise 11
1. Age, Income, length of labor, return to work, and number of hours working per week.
2. Sample size, median, and standard deviation were used to describe the length of labor
How can graphics and/or statistics be used to misrepresent data? Where have you
seen this done?
Statistics are commonly used to prove or disprove theories related to illness and
medications. Even if the study is carefully planned to conduct as a result of
1. Patient 3, with a T score of 63.
2. Patient 4, with a T score of 23.
3. Yes there was more of a memory performance decline. The patient had a score of 23,
and the average score is 38.2.
4. The mean ( )=45.9 standard deviation (SD)=5.2
5. The preoperati
How would you explain the analysis of variance, assuming that your audience has
not had a statistics class before?
Analysis of variance (ANOVA) is used when comparing three or more groups of
numbers. It is indicated when hypothesis testing is performed, w
What are the characteristics of a population for which it would be appropriate to use
mean/median/mode? When would the characteristics of a population make them
inappropriate to use
The mean is essentially a model of your data set. It is the value that is
Name:
Date:
Topic One: Mean, Variance, and Standard Deviatio
Please type your answer in the cell beside the question.
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every 20th patient that co
emergen
Name:
Date:
Hypothesis Testing
Answer each question completely to recieve full credit
1. There is a new drug that is used to treat leukemia. The following data
represents the remission time in weeks for a random sample of 21
patients using the drug.
10
11
Name:
Date:
Topic 2: Population and Sampling
Distribution Excel Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100,
and a standard deviation of 8, determine the Z
EXERCISE 18 Mean and Standard Deviation
Name: _
1. Assuming that the distribution is normal for weight relative to the ideal and 99% of the male
participants scored between (53.68, 64.64), where did 95% of the values for weight relative to
the ideal lie?
Name:
Date:
Topic 4: ANOVA Excel Worksheet
Directions: Answer all questions and submit to instructor at the end
of Module 4
Statistical Conclusion:
F=1.65<3.25=F-crit
Thus we fail to reject the null hypothesis.
Experimental Conclusion: There is not suffic
Week 3 DQ 1
To determine when using a z-test is more appropriate than a t-test you first
have to understand the difference between a z-score and a t-score. A zscore is a measure of how many standard deviations below or above the
population mean a measured
Wk 5 DQ 1
Correlation is a statistical measure that indicates the extent to which two or
more variables fluctuate together. A linear correlation indicates a very strong
correlation, however no matter how strong the correlation, correlation is not
the same
W3Q2 HLT 362 Intro to Statistics GCU
Before doing hypothesis testing a researcher has to choose a significance
level (denoted ). The significance level is used to determine if the test
results are statistically significant and also determine the probabili
Wk4Q2 HLT 362 GCU
In statistics an interaction may occur when your study involves two or more
independent variables. An interaction occurs when one of the independent
variables depends on one or more of the other independent variables.
For Example if a re
HLT-362V Applied Statistics for Healthcare Professionals-Grand Canyon University
Week 2 Q1
In statistics, samples are chosen to represent a large population because it is
difficult to include everyone in the sample. Random sampling is used
because it is m
EXERCISE 36 Analysis of Variance (ANOVA)
Name: _
1. The researchers found a significant difference between the two groups (control and
treatment) for change in mobility of the women with osteoarthritis (OA) over 12 weeks with the
results of F(1, 22) = 9.6
EXERCISE 11 & 16
Exercise 11 - Using Statistics to Describe a Study Sample
Name: _
1. What demographic variables were measured at least at the interval level of measurement?
Age, Income, Length of Labor, Return to work, and Number of hours of work per wee
Wk 5 DQ 2 HLT 362 GCU
So we have all heard the phrase 90% of all statistics are made up in that
moment. Because the average person does not have a strong background
in statistics or even math, statistics are often used in a misleading way.
For Example, a
HLT-362V Applied Statistics for Healthcare Professionals-Grand Canyon University
Week 2 Q1
In statistics, samples are chosen to represent a large population because it is
difficult to include everyone in the sample. Random sampling is used
because it is m