A sample of fifth-grade classes was studied in an article. One of the variables collected was the
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A sample of fifth-grade classes was studied in an article. One of the variables collected was the class size in terms of student-to-faculty ratio. The student-to-faculty ratios of the 73 fifth-grade classes sampled have a mean of 16.82 and a standard deviation of 2.31 . Complete parts (a) through (d) below.
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