'Market research firm carries' presentation slideshows

5. In general, reducing the sample size Increases the margin of error

1. For a one sample z interval for a population mean, changing from 95% confidence to 90% confidence, with all other things being equal, Increases the interval size by 16% Decreases the interval size by 16% Increases the interval size by 19% Decreases the interval size by 19%

128 views • 12 slides