Mathematics, 12.12.2019 04:31, warnene17

Arandom survey of teachers found that 224 of 395 elementary school teachers, and 126 of 266 high school teachers, were very satisfied with their work. find a 95% confidence interval for the difference (elementary minus high school) in proportions of teachers who are very satisfied with their work.

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Arandom survey of teachers found that 224 of 395 elementary school teachers, and 126 of 266 high sch...