For each variable:
Construct a frequency distribution
Calculate appropriate measures of
central tendency
Calculate appropriate measures of
dispersion
Write a sentence or two summarizing
the frequency distribution, central tendency, and dispersion of
each variable
Each item is worth 10 points for a total of 40 points.
Survey Items:
1. What is your age in years? (Values are actual ages.)
2. Educational level
0. Less than HS
1. High School
2. Jr. College
3. Bachelor's degree
...
Compare and contrast the the three different measures of central
tendency. Provide an example of the most appropriate time to use
each measurement scale.
Explain whether you think the mean is the appropriate statistic
to measure central tendency and why? Why is the standard deviation
used instead of the variance?
Explain whether you think the mean is the appropriate statistic
to measure central tendency and why, and explain why the standard
deviation is used instead of the variance when calculating the
average length of stay.
What does a measure of central tendency indicate? describe the
important measures of central tendency pointing out the situation
when one measure is considered relatively appropriate in comparison
to other measures
Discuss why the median is a more stable measure of central
tendency than the mean. Provide an original example in your
discussion. (2 pts)
3. Why do we generally consider the mean to be a more precise
measure of central tendency than either the median or the mode? (1
pt)
4. Discuss why a mean should not be used with ordinal level
variables. Justify your answer. (1 pt)
5. For each of the following, indicate the measure of central
tendency...
#29 Among the following statements on measures of central
tendency, which is/ are true?
Statement 1: The mode only focuses on the relative position of
the ranked observations.
Statement 2: There are two possible calculations to be applied
when solving for the median., and they depend on the parity of the
sample size.
a. Both Statements 1 and 2 are true.
b. Both Statements 1 and 2 are false.
c. Neither of the above.
Q1. Discuss the tools to measure central tendency?
Q2. I need new and unique answers, please.
a) Discuss parametric and nonparametric test used for hypothesis testing.
b) In a cross sectional study on coronary heart disease (CHD), the smoking and CHD status is summarized below. Use appropriate statistical test to conclude smoking plays any role in CHD.
Smoking
Cardiovascular Diseases
Total
Yes
No
Yes
10
90
100
No
26
74
`100