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. Click on the datafile logo to reference the data. DATA file 15 22 12 21 26 18 42 29 64 20 15 22 18 24 27 24 26 19 a. Compute the mean and median percentage of students currently using Apple iPads. (to 2 decimals) Mean Median b. Compute the first and third quartiles for these data. (to 2 decimals) (to the nearest whole number) First quartile (to 2 decimals) Third quartile c. Compute the range and interquartile range for these data. (to the nearest whole number) (to 2 decimals) Interquartile range d. Compute the variance and standard deviation for these data. (to 2 decimals) Range Variance (to 2 decimals) Standard deviation e. Are there any outliers in these data? Enter the number of outliers. If an amount is zero, enter "0". value(s) would be considered outlier(s). f. Based on your calculated values, what can we say about the percentage of students using iPads in public school districts? iPad use is very high for all school districts. +

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Transcribed Image Text: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. Click on the datafile logo to reference the data. DATA file a. Compute the mean and median percentage of students currently using Apple iPads. (to 2 decimals) (to the nearest whole number) Mean Median 15 22 12 21 26 18 42 29 64 20 15 22 18 24 27 24 26 19 Range b. Compute the first and third quartiles for these data. (to 2 decimals) First quartile Third quartile (to 2 decimals) c. Compute the range and interquartile range for these data. (to the nearest whole number) (to 2 decimals) Interquartile range d. Compute the variance and standard deviation for these data. (to 2 decimals) (to 2 decimals) Standard deviation e. Are there any outliers in these data? Enter the number of outliers. If an amount is zero, enter "0". value(s) would be considered outlier(s). f. Based on your calculated values, what can we say about the percentage of students using iPads in public school districts? iPad use is very high for all school districts. Variance

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