Title: Interpreting confidence levels and confidence intervals (article) | Khan Academy
Headings: Interpreting confidence levels and confidence intervals
Interpreting confidence levels and confidence intervals
Example 1: Interpreting a confidence level
Which of the following is a correct interpretation of the confidence level?
Choose all answers that apply:
Example 2: Interpreting a confidence interval
Choose all answers that apply:
Example 3: Effect of changing confidence level
Choose 1 answer:
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Content: Choose all answers that apply: (Choice A)
A
If the coach took another sample of pitches, there's a chance the sample mean would be between and . (Choice B)
B
About of pitches in the sample were between and . (Choice C)
C
We're confident that the interval captured the true mean pitch speed. [Can we say there is a 95% chance that the true mean is between 110 and 120 kilometers per hour?] Example 3: Effect of changing confidence level
Suppose that the coach from the previous example decides they want to be more confident. The coach uses the same sample data as before, but recalculates the confidence interval using a confidence level. How will increasing the confidence level from to affect the confidence interval? Choose 1 answer: