Stats: Review Chapter 8

If 827 represents "no" voters out of 2584, construct a 95% confidence interval for the "no" group.

• [.300,.340]

• [.298,.342]

• [.302,.338]

• [.288,.352]

Identify the confidence interval used in the figure below if each shaded area is equal to 0.05.

• 90%

• 95%

• 98%

• 99%

The symbol for the sample proportion is __________.

• Z_c

• p̂

• E

• q

The larger your confidence interval is, the more sure (higher confidence level) you can be.

• True

• False

Find the critical value, z*, for 91% confidence.

• 1.70

• 1.34

• 0.18

• -1.34

For a sample, the 95% confidence interval is (0.202, 0.482). What is the point estimate, p̂, of this sample?

• 0.28

• 0.14

• 0.342

• 0.684

The set of all possible outcomes of a probability experiment is called the __________

• Tree diagram

• sample space

• mutually exclusive

• empirical

What does this symbol represent?

• population proportion

• parameter

• sample proportion

• population sample

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E