Question

Cel A sample of fifth-grade classes was studied in an article. One of the variables collected was the cass size in tems of student-to-faculty ratio. The student-to-faculty ratios of the 89 fifth-grade classes sampled have a mean of 15.04 and a standard deviation of 1.83. Complete parts (a) through (d) below a. Construct the graph shown below ITTEENES x-3s x-2s x-s x+s +2s x+3s x-3s x+s x-2s x+2s X-s x+3s x = (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 out of fifth-grade classes sampled have student-to-faculty ratos between and (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 and At least out of fifth-grade classes sampled have student-to-faculty ratios between Enter your answer in each of the answer boxes. javascriptvold0 12 e MA UN 7 MacBook Air x-3s= X+s x-2s x+2s X- x+3s x = (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 fifth-grade classes sampled have student to-faculty ratios between out of and (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 fifth-grade classes sampled have student-to-faculty ratios between out of and (Type integers or decimals. Do not round.) d. Apply Property 3 of the empirical rule to make pertinent statements about the observations in the sample. At least out of fifth-grade classes sampled have student-to-faculty ratios between and (Type integers or decimals. Do not round.) Enter your answer in each of the answer boxes. javascript.void(0): JUN 12 7 MacBook Air

Answer 1

3s15.04 3* 1.83 9.55 a. 2s 15.04 2 1.83 11.38 S 15.04 1.83 13.21 15.04 s 15.041.83 16.87 2s 15.04 2 1.83 18.7 20.53 3s 15.04 3* 1.83 b. At least 0.68 89 60.52 out of 89 fifth - grade classes sampled have student to faculty ratios between 13.21 and 16.87 c. At least 0.95 89 84.55 out of 89 fifth - grade classes sampled have to faculty ratios between 11.38 and 18.7 student 88.733 out of 89 fifth-grade classes sampled have d. At least 0.99789 student to faculty ratios between 9.55 and 20.53.