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Do teachers find their work rewarding and satisfying? An article reports the results of a survey...

Do teachers find their work rewarding and satisfying? An article reports the results of a survey of 394 elementary school teachers and 261 high school teachers. Of the elementary school teachers, 227 said they were very satisfied with their jobs, whereas 126 of the high school teachers were very satisfied with their work. Estimate the difference between the proportion of all elementary school teachers who are satisfied and all high school teachers who are satisfied by calculating a 95% CI. (Use pelementary − phigh school. Round your answers to four decimal places.)

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Answer #1

the critical value for a two-tailed test is z = 1.96

95% confidence interval

(0.0156,0.1712)

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