The following data show the number of hours spent watching television for 12 randomly selected freshmen attending a liberal arts college in the Midwest. Hours of Television Viewed Weekly 7.8 12.9 12.5 11.2 14.9 10.8 5.3 8.6 8.9 7.8 12.7 6.5 Calculate the range, variance, standard deviation, and interquartile range for the sample data. The range for the data set is (Type an integer or a decimal. Do not round.) The sample variance, s², is (Round to two decimal places as needed.) The sample standard deviation, s, is (Round to two decimal places as needed.) The interquartile range for the data set is (Type an integer or a decimal. Do not round.)

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