Confidence Intervals and Sample Proportions

Calculating confidence intervals for proportions

Calculating mean values

Calculating standard deviation

Calculating median values

Number of failures

Confidence level

Number of successes

Sample size

Number of failures

Sample size

Number of successes

Confidence level

Number of failures divided by sample size

Sample size divided by number of failures

Number of successes divided by sample size

Sample size divided by number of successes

1 minus P hat

P hat minus 1

1 divided by P hat

P hat divided by 1

Binomial distribution

Poisson distribution

Normal distribution

Exponential distribution

Using norm inverse of 1 minus the confidence level

Using norm inverse of the number of successes

Using norm inverse of the confidence level

Using norm inverse of the sample size

To calculate the mean

To determine the sample size

To determine the range of the confidence interval

To adjust the confidence level

Sample proportion times margin of error

Margin of error minus sample proportion

Sample proportion minus margin of error

Sample proportion plus margin of error

Sample proportion minus margin of error

Margin of error minus sample proportion

Sample proportion times margin of error

Sample proportion plus margin of error