Mathematics, 14.02.2020 21:35 aidenmanpig

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 70 fifth-grade classes sampled have a mean of 17.33 and a standard deviation of 2.36.
Complete parts (a) through (c) below.
a. x-3s
x+s
x-2s
x+2s
x+3s
Type integers or decimals. Do not round.
b. Apply Property 1 of the empirical rule to make pertinent statements about the observations in the sample At least 8 out of 70 fifth-grade classes sampled have student-to-faculty ratios between 15.36 and 17.86 Type integers or decimals. Do not round.
c. Apply Property 2 of the empirical rule to make pertinent statements about the observations in the sample. At least out of 70 fifth-grade classes sampled have student-to-faculty ratios between and Type integers or decimals. Do not round

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A sample of fifth-grade classes was studied in an article. One of the variables collected was the cl...

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