The New York Times reported that Apple has unveiled a new iPad marketed specifically to school districts for use by students (The New York Times website). The 9.7-inch iPads will have faster processors and a cheaper price point in an effort to take market share away from Google Chromebooks in public school districts. Suppose that the following data represent the percentages of students currently using Apple iPads for a sample of 18 U.S. public school districts.?

a. Compute the mean and median percentage of students currently using Apple iPads.?

b. Compare the first and third quartiles for these data.?

c. Compute the range and interquartile range for these data.?

d. Compute the variance and standard deviation for these data.?

e. Are there any outliers in these data??

f. Based on your calculated values, what can we say about the percentage of students using iPads in public school districts?

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