STA 6166 Exam 1
Fall 2006
PRINT Name _______________
1.
You want to ask a sample of professors at your school how they feel
about the tenure system for faculty.
You realize that opinions may
differ depending on the rank of the professor, especially because
assistant professors do not have tenure. You take separate simple
random samples of assistant, associate, and full professors and combine
them to form your data.
You have used a
a.
simple random sample.
b.
stratified random sample.
c.
systematic sample
d.
completely randomized design experiment.
e.
randomized complete block design experiment.
2.
True or False?
Bar graphs and pie charts are used for quantitative
data; histograms are used for qualitative data.
3.
Complete the following statement by placing the correct words in the
blanks.
A parameter is a descriptive measure of a __________, a
statistic is a descriptive measure of a __________.
4.
Egg quality (Grade AA, Grade A, Grade B) is measured on a
a)
nominal scale.
b)
ordinal scale.
c)
interval/ratio scale.
d)
random scale.
5.
A study of the effect of parents' smoking habits on the smoking
habits of students in a high school produced the following table of
proportions.
Suppose a student is randomly selected from this population.
a.
What is the probability the student smokes and at least one parent
of the student smokes?
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- Fall '08
- Staff
- Statistics, Statistical hypothesis testing, significance level, appropriate p-value
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