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Course: Statistics and probability?>?Unit 11
Lesson 2: Estimating a population proportion- Confidence interval example
- Margin of error 1
- Margin of error 2
- Conditions for valid confidence intervals for a proportion
- Conditions for confidence interval for a proportion worked examples
- Reference: Conditions for inference on a proportion
- Conditions for a z interval for a proportion
- Critical value (z*) for a given confidence level
- Finding the critical value z* for a desired confidence level
- Example constructing and interpreting a confidence interval for p
- Calculating a z interval for a proportion
- Interpreting a z interval for a proportion
- Determining sample size based on confidence and margin of error
- Sample size and margin of error in a z interval for p
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Conditions for a z interval for a proportion
Problem
A development expert wants to use a one-sample interval to estimate the proportion of women aged 16 and over that are literate in Albania. They take an of women from this population and finds that are literate.
Which conditions for constructing this confidence interval did their sample meet?