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5. Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, variance, and standard deviation for the given sample data. What do the results tell us? 1 9 51 94 17 7 29 34 47 44 48 (Round to one decimal place as needed.) Range= Sample standard deviation Sample variance What do the results tell us? (Round to one decimal place as needed.) OA. Jersey numbers on a football team vary much more than expected. B. Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless. C. Jersey numbers on a football team do not vary as much as expected. OD. The sample standard deviation is too large in comparison to the range. 6. Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.3 Mbps. The complete list of 50 data speeds has a mean of x= 15.58 Mbps and a standard deviation of s=20.25 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. (Round to one decimal place as needed.) a. The difference is Mbps. (Type an integer or a decimal. Do not round.) d. If we consider data speeds that convert to z scores between -2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? b. The difference is (Round to two decimal places as needed.) standard deviations, c. The z score is z = (Round to two decimal places as needed.) d. The carrier's highest data speed is (1). (1) O not significant. significantly low. significantly high The probability is (Type an integer or a decimal. Do not round.) novi anganib nim S noyT) orduan albom naom 7. Three of the 50 digital video recorders (DVRs) in an inventory are known to be defective. What is the probability that a randomly selected item is defective?