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Fuel consumption is commonly measured in miles per gallon (mi/gal). An agency designed new fuel consumption tests to be used starting with 2008 car models. Listed below are randomly selected amounts by which the measured MPG ratings decreased because of the new 2008 standards. Find the range, variance, and standard deviation for the sample data. Is the decrease of 4 milgal unusual? Why or why not? The range of the sample data is milgal. (Type an integer or a decimal.) The variance of the sample data is (Round to one decimal place as needed.) The standard deviation of the sample data is milgal. (Round to one decimal place as needed.) Is the largest decrease, 4mi/ gal, unusual? Why or why not? A. The decrease of 4mi/ gal is unusual because it is more than two standard deviations from the mean. B. The decrease of 4milgal is not unusual because the sample is a simple random sample, in which no values are considered unusual. C. The decrease of 4mi/gal is unusual because the smallest value in a data set is usually an outlier. D. The decrease of 4mi/gal is not unusual because it is within two standard deviations of the mean. Listed below are the measured radiation emissions (in W/kg) corresponding to cell phones: A, B, C, D, E, F, G, H, I, J, and K respectively. The media often present reports about the dangers of cell phone radiation as a cause of cancer. Cell phone radiation must be 1.6W/kg or less. Find the a. mean, b. median, c. midrange, and d. mode for the data. Also complete part e. a. Find the mean. The mean is (Round to three decimal places as needed.) b. Find the median. The median is (Type an integer or a decimal.) c. Find the midrange. The midrange is (Type an integer or a decimal.) d. Find the mode. Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The mode(s) is (are) (Use a comma to separate answers as needed.) Listed below are the measured radiation emissions (in W/kg) corresponding to cell phones: A, B, C, D, E, F, G, H, I, J, and K respectively. The media often present reports about the dangers of cell phone radiation as a cause of cancer. Cell phone radiation must be 1.6W/kg or less. Find the a. mean, b. median, c. midrange, and d. mode for the data. Also complete part e. Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The mode(s) is (are) (Use a comma to separate answers as needed.) B. There is no mode. e. If you are planning to purchase a cell phone, are any of the measures of center the most important statistic? Is there another statistic that is most relevant? If so, which one? A. The maximum data value is the most relevant statistic, because it is closest to the limit of 1.6W/kg and that cell phone should be avoided. B. The minimum data virue is the most relevant statistic, because it is closest to the limit of 1.6W/kg and that cell phone should be purchased. C. The midpoint of the data set is the most important statistic because cell phones that have values close to it have the safest emissions. D. The mean of the data set is the most important statistic because cell phones that have values close to it have the safest emissions. Listed below are contributions (in dollars) made to two presidential candidates in a recent election. Find the coefficient of variance for each data set. Is there a difference in variation between the two data sets? The coefficient of variation for the contributions to Candidate A is %. (Round to one decimal place as needed.) The coefficient of variation for the contributions to Candidate B is %. (Round to one decimal place as needed.) Is there a difference in variation between the two data sets? Consider a difference of greater than 1% to be significant. A. The contributions to Candidate A have significantlly less variation than the contributions to Candidate B. B. The contributions to Candidate B have significantlly less variation than the contributions to Candidate C. There is no significant difference in the variations