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HLT 362V Complete Course New Version
HLT362V
HLT 362V Module 1 Mean Variance Standard Deviation
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every 20th patient
that comes into the emergency room is given a satisfaction survey upon their
discharge.
a. random sampling
b. cluster sampling
c. systematic sampling
d. stratified sampling
e. none of the above
2. The formula for finding the sample mean is ______________.
3. The formula for finding sample standard deviation is
________________.
HLT 362V Module 1 Exercise 16 Done
1- The researchers analyzed the data they collected as though it
were at what level of measurement? (Your choices are: Nominal, Ordinal,
Interval/ratio, or Experimental)
2- What was the mean posttest empowerment score for the control
group?
3- Compare the mean baseline and posttest depression scores of the
experimental group. Was this an expected finding? Provide a rationale for your
answer.
4- Compare the mean baseline and posttest depression scores of the
control group. Do these scores strengthen or weaken the validity of the
research results? Provide a rationale for your answer.
5- Which group’s test scores had the least amount of variability
or dispersion? Provide a rationale for your answer.
6 – Did the empowerment variable or self-care self-efficacy
variable demonstrate the greatest amount of dispersion? Provide a rationale for
your answer.
7 – The mean (X ̅)
is a measure of a distribution while the SD is a measure of its scores. Both X ̅ and SD are statistics.
8 – What was the mean severity for renal disease for the research
subjects? What was the dispersion or variability of the renal disease severity
scores? Did the severity scores vary significantly between the control and the
experimental groups? Is this important? Provide a rationale for your answer.
9 – Which variable was least affected by the empowerment program?
Provide a rationale for your answer.
10 – Was it important for the researchers to include the total
means and SDs for the study variables in Table 2 to promote the readers’
understanding of the study results? Provide a rationale for your answer.
HLT 362V M2 Population Sampling Distribution
For a normal distribution that has a mean of 100 and a standard
deviation of 8. Determine the Z-score for each of the following X values:
X = 108
X = 112
X = 98
X = 70
X = 124
Use the information in 1 A to determine the area or probability of
the following:
P(x > 108)
P(x
HLT 362V Week 2 Module 2 Exercise 29
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? Round your
answer to two decimal places.
2. Which of the following values from Table 1 tells us about
variability of the scores in a distribution?
3. Assuming that the distribution for General Health Perceptions
is normal, 95% of the females’ scores around the mean were between what values?
Round your answer to two decimal places.
4. Assuming that the distribution of scores for Pain is normal,
95% of the men’s scores around the mean were between what two values? Round
your answer to two decimal places.
5. Were the body image scores significantly different for women
versus men? Provide a rationale for your answer.
6. Assuming that the distribution of Mental Health scores for men
is normal, where are 99% of the men’s mental health scores around the mean in
this distribution? Round your answer to two decimal places.
7. Assuming that the distribution of scores for Physical
Functioning in women is normal, where are 99% of the women’s scores around the
mean in this distribution? Round your answer to two decimal places.
8. Assuming that the distribution of scores is normal, 99% of
HIV-positive body image scores around the mean were between what two values?
Round your answer to two decimal places.
99% of HIV-positive body image scores for males were between
(24.14, 111.86):
9. Assuming that the distribution of scores for Role Functioning
is normal, 99% of the men’s scores around the mean were between what values?
Round your answer to two decimal places.
10. What are some limitations of this study that decrease the
potential for generalizing the findings to the target population?
HLT 362V Module 3 Hypothesis Testing Week 3
Problem 1
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.
Problem 2
2. We wish to test the claim that the mean body mass index (BMI)
of men is equal to the mean BMI of women. Use the data to the right to test
this claim.
HLT 362V Module 3 Exercise 31
What are the two groups whose results are reflected by the t
ratios in Tables 2 and 3?
Which t ratio in Table 2 represents the greatest relative or
standardized difference between the pretest and 3 months outcomes? Is this t
ratio statistically significant? Provide a rationale for your answer.
Which t ratio listed in Table 3 represents the smallest relative
difference between the pretest and 3 months? Is this t ratio statistically
significant? What does this result mean?
What are the assumptions for conducting a t-test for dependent
groups in a study? Which of these assumptions do you think were met by this
study?
Compare the 3 months and 6 months t ratios for the variable
Exercise from Table 3. What is your conclusion about the long-term effect of
the health-promotion intervention on Exercise in this study?
What is the smallest, significant t ratio listed in Table 2?
Provide a rationale for your answer.
Why are the larger t ratios more likely to be statistically
significant?
Did the health-promotion program have a statistically significant
effect on Systolic blood pressure (BP) in this study? Provide a rationale for
your answer.
Examine the means and standard deviations for Systolic BP at
pretest, 3 months (completion of the treatment), and 6 months. What do these
results indicate? Are these results clinically important? Provide a rationale
for your answer.
Is this study design strong or weak? Provide a rationale for your
answer.
Would you, as a health care provider, implement this intervention
at your facility based on the Total Risk Score results? Provide a rationale for
your answer.
HLT 362V Module 4 ANOVA Excel Worksheet
SYSTOLIC BLOOD PRESSURE IN DIFFERENT AGE GROUPS
The following table contains a random sample of 40 women
partitioned into three groups:
Group 1: ages below 20
Group 2: ages 20 through 40
Group 3: ages over 40
The values in the table are the systolic blood pressure levels
The hypothesis test:
H0:u1=u2=u3
H1: at least one of the treatment means is different
Use the Excel Analysis ToolPak to create an Anova – Single Factor
table. Is there sufficient evidence to support the claim that women in the
different age categories have different mean blood pressure levels? Give
reasons for your decision.
HLT 362V Module 4 Exercise 36
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) 9.619, p 0.005.
Discuss each aspect of these results.
State the null hypothesis for the Baird and Sands (2004) study
that focuses on the effect of the GI with PMR treatment on patients’ mobility
level. Should the null hypothesis be rejected for the difference between the
two groups in change in mobility scores over 12 weeks? Provide a rationale for
your answer.
The researchers stated that the participants in the intervention
group reported a reduction in mobility difficulty at week 12. Was this result
statistically significant, and if so at what probability?
If the researchers had set the level of significance or = 0.01,
would the results of p 0.001 still be statistically significant? Provide a
rationale for your answer.
If F(3, 60) 4.13, p 0.04, and = 0.01, is the result statistically
significant? Provide a rationale for your answer. Would the null hypothesis be
accepted or rejected?
Can ANOVA be used to test proposed relationships or predicted
correlations between variables in a single group? Provide a rationale for your
answer.
If a study had a result of F(2, 147) 4.56, p 0.003, how many
groups were in the study, and what was the sample size?
The researchers state that the sample for their study was 28 women
with a diagnosis of OA, and that 18 were randomly assigned to the intervention
group and 10 were randomly assigned to the control group. Discuss the study
strengths and/or weaknesses in this statement.
In your opinion, have the researchers established that guided
imagery (GI) with progressive muscle relaxation (PMR) reduces pain and
decreases mobility difficulties in women with OA?
The researchers stated that this was a 12-week longitudinal,
randomized clinical trial pilot study with 28 women over 65 years of age with
the diagnosis of OA. What are some of the possible problems or limitations that
might occur with this type of study?
HLT 362V Module 5 Correlation Regression and Chi Square Excel
Worksheet
SYSTOLIC AND DIASTOLIC BLOOD PRESSURE OF FEMALES
The following table represents systolic and diastolic blood
pressure measurements of 40 females.
A) Use the Excel Analysis ToolPak to find the linear correlation
coefficient for the systolic and diastolic measurements.
B) Use the Excel Analysis ToolPak to determine the linear
regression equation that uses the systolic pressure to predict the diastolic
pressure.
C) What is the best predicted value for diastolic pressure given
that a woman has a systolic level of 100?
HLT 362V EXERCISE 11 Questions to be Graded
1. What demographic variables were measured at least at the
interval level of measurement?
2. What statistics were used to describe the length of labor in
this study? Were these appropriate?
3. What other statistic could have been used to describe the
length of labor? Provide a rationale for your answer.
4. Were the distributions of scores similar for the experimental
and control groups for the length of labor? Provide a rationale for your
answer.
5. Were the experimental and control groups similar in their type
of feeding? Provide a rationale for your answer.
6. What was the marital status mode for the subjects in the
experimental and control groups? Provide both the frequency and percentage for
the marital status mode for both groups.
7. Could a median be determined for the education data? If so,
what would the median be for education for the experimental and the control
groups? Provide a rationale for your answer.
8. Can the findings from this study be generalized to Black women?
Provide a rationale for your answer.
9. If there were 32 subjects in the experimental group and 36
subjects in the control group, why is the income data only reported for 30
subjects in the experimental group and 34 subjects in the control group?
10. Was the sample for this study adequately described? Provide a
rationale for your answer.
HLT 362V EXERCISE 18 Questions to be Graded
1. In comparing men and women, which group had higher body image
scores? Provide a rationale for your answer.
2. Men had higher variability in weight change over the last 12
months when compared to women. Is this statement true or false? Provide a
rationale for your answer.
3. What are the X_and SD values for men’s body weight ratio?
4. Assuming that the distribution of scores is normal, calculate
the scores where 95% of values around the mean lie for women with weight change
over the last 3 months. Round your answer to two decimal places.
5. Assuming that the distribution of body weight ratio is a normal
curve, 95% of the men lie between which two values of body weight ratio around
the mean? Round your answer to two decimal places.
6. Assuming that the distribution of womens’s body image scores is
normal, 99% of women’s body image scores around the mean lie between what two
values? Round your answer to two decimal places.
7. Assuming that the distribution is a normal curve, 99% of men
were between what ages? Round your answer to two decimal places.
8. Assuming that the distribution is a normal curve, 95% of men
were between what ages? Round your answer to two decimal places.
9. Did HIV-positive participants have signifi cantly higher body
image scores than those with AIDS? Provide a rationale for your response.
HLT 362V Exercise 20
1. Which patient scored the highest on the preoperative CVLT
Acquisition? What was his or her T score?
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