unit 6

Question 1

Point estimate is a

Answer 1

midpoint

Question 2

Why do we use interval estimate rather than a point estimate?

Answer 2

Because it is more likely to be correct

Question 3

What are intervals?

Answer 3

Set of plausible values for a parameter based on sample data

Question 4

Interpreting Confidence Interval- the sentence and points

Answer 4

We are C% confident that the interval from ___ to ___ captures [parameter in context]

Points:
- confidence percentage
- interval captures
- proprotion, true
- parameter

Question 5

What is the confidence level?

Answer 5

The predicted sucess rate

Question 6

How do you intepret a confidence level?

Answer 6

If we were to select many random samples of same size from same population & construct a c% confidence interval using each sample, abt c% of intervals would cpature the [parameter in context]

Question 7

Confidence interval _____ tell us the probability that a particular interval includes the parameter

Answer 7

doesn’t

Question 8

Conditions for calculcating a confidence interval for a population proportion

Answer 8

• Random condiition
• 10% condiiton
• Large counts

Question 9

Large cou