Exam 1 Practice Questions
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_ 1.
_ 2.
_ 3.
_ 4.
_ 5.
_ 6.
_ 7.
_ 8.
An important measure of location for categorical data is the a. mean b. median c. mode
d. marg
Exam 1 Practice Questions Answer Section
MULTIPLE CHOICE
1. ANS: C 2. ANS: B 3. ANS: D 4. ANS: C 5. ANS: B 6. ANS: D 7. ANS: D 8. ANS: D
9. ANS: B
10. ANS: C 11. ANS: A 12. ANS: B 13. ANS: C 14. ANS: B 15. ANS: D 16. ANS: D 17.
ANS: C 18. ANS: C 19. ANS:
Week 2 Notes
When describing data, usually we focus our attention on two types of measures.
Measures of CENTRAL LOCATION
Measures of VARIABILITY or SPREAD
Both of these measures could be computed for
Population
Sample
The Median is the value that f
Week 4 Notes
If an experiment consists of a sequence of steps
in which there are n1 possible results for the first step,
n2 possible results for the second step, and so on,
then, the Total Number of Experimental Outcomes
= (n1)(n2) . . . (nk).
When econ
Week 3 Notes
This is a measure of the spread of the middle 50% of the observations
Large inter quartile value indicates a large spread (dispersion) of the
observations.
Advantages:
It is not sensitive to extreme data values.
Disadvantages:
Only show
Week 5 Notes
A random sample of certain size (n) obtained from a finite population of size N where n
< N, is a sample selected in such a way that each possible element of the population has
equal probability of being selected.
When the population is fini
21. A statistics professor asked students in a class their ages. On the basis of this information,
the professor states that the average age of all the students in the university is 21 years. This is an
example of a.
a census
b.
descriptive statistics c.
MULTIPLE CHOICE QUESTIONS
1.
Which of the following is an example of quantitative data? a. the players number on a
baseball uniform b.
the serial number on a one-dollar bill c.
the part number of an
inventory item
d.
the number of people in a waiting line
EXAM 1 NAME_
Directions: This exam is worth a total of 100 points.
Write your name on your exam and your
scantron. Bubble in your name on the scantron with your last name first. Make sure you
bubble in your correct Banner ID number on the front and back o
Week 1 Notes
Statistics is concerned with data
I.e., collection, organization, summarization; analysis of data to enable:
drawing valid conclusions
making informed decisions
Public accounting firms use statisticalsampling procedures when conductingaudits