GCU HLT362 Week 3 Quiz Latest 2019 JULY Question # 00603435 Course Code : HLT362 Subject: Health Care Due on: 08/02/2019 Posted On: 08/02/2019 08:23 AM Tutorials: 1 Rating: 4.7/5

HLT362 Applied Statistics for Health Care Professionals

Week 3 Quiz

• To obtain a sample of 20 patients
in ICU, clinician goes to the ICU and selects the current patients. This is an
example of a:

•Judgement
sampling

•Simple
random sampling

•Snowball
sampling

•Convenience
sampling

• A Type I error is committed when
_____.

•We reject a
null hypothesis that is true.

•We do not
reject a null hypothesis that is true.

•We reject
a null hypothesis that is false.

•We do not
reject a null hypothesis that is false.

• Which of the following would be an
appropriate null hypothesis?

•The mean
of a sample is equal to 65.

•The mean
of a population is greater than 65.

•The mean of
a population is equal to 65.

•The mean
of the sample is greater than 65.

• Quantitative research strives for
quality and the ability to apply the analysis to a broader population. This is
referred to as _____.

•Validity

•Normality

•Generalization

•Reliability

• Scenario Based Question: If you
were conducting a study of blood pressure readings in a hospital unit, compared
AM and PM readings, and assumed the data were normally distributed and
variances were equal, what type of statistical test would be conducted?

•Separate
variance t-test

•Paired
t-test

•Pooled
variance t-test

•F-test

• Which of the following can be
reduced by proper interviewer training?

•Neither
sampling error nor measurement error

•Sampling
error

•Both sampling
error and measurement error

•Measurement
error

• A Type II error is committed when
_____.

•We reject a
null hypothesis that is true.

•We do not
reject a null hypothesis that is false.

•We do not
reject a null hypothesis that is true.

•We reject
a null hypothesis that is false.

• If a researcher does not select the
appropriate level of significance (alpha) based upon prior research or industry
standard and concludes that the study found a statistical difference when in
fact there was no difference, this is referred to as _____.

•Validity

•Reliability

•Type I
error

•Type II
error

• If you are conducting a study on
the impacts of diet and exercise on high blood pressure and you take a
proportional sample based upon race/ethnicity, this would be an example of
_____.

•Simple
random sample

•Cluster
sampling

•Stratified
sampling

•Convenience
sampling

• In a research study, if the sample
size is too low and the results do not find a statistical difference when in
fact there is a difference, this is referred to as _____.

•Validity

•Reliability

•Type I error

•Type II
error