AP Statistics – Chapter 8
-Estimating a Population Proportion
-Estimating a Population Mean
Topic Questions:
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Discuss the difference between point estimator and point estimate.
What is a margin of error (m.o.e.)? Why does it occur and how can we minimize it?
Explain the difference between confidence level and confidence interval.
Give the “approved wording” for a conclusion to a confidence interval problem.
Describe how to transform an “interval format” C.I. into an ‘estimate ± m.o.e.” format.
List and explain the conditions that must be met in order to construct a confidence interval.
Define each of the following terms and describe how it is determined or computed.
a) test statistic
b) df
8) What is the standard error of a statistic?
9) What are ‘critical value z’ and ‘critical value t’? Explain how they are used.
10) The term robust is sometimes used to describe a t procedure. Explain what this means. Include
any exemptions.