1. 24 The following data represent the ages of chief justices of the U.S. Supreme Court when they were appointed 64 as 69 56 s2 s2 62 so Edward D. White 65 a. Determine the population mean , median ,and mode ages. Suppose hours . a. Determine the range and population standard deviation ages. Determine the sample standard deviation age. that a certain brand of light bulb has a mean life of 600 hours and a standard deviation of 53 A histogram of the data indicates the sample data follow a bell -shaped distribution . According to the Empirical Rule , 99.7 % of light bulbs have lifetimes between 7 and 7 hours . Assuming the data are bell shaped ,determine the percentage of light bulbs that will have a life between 494 and 706 hours . Assuming the data are bell shaped ,what percentage of light bulbs will last between 547 and 706 hours . If the company that manufactures the light bulb guarantees to replace any bulb that does not last at least 441 hours , what percentage of light bulbs can the rm expect to have to replace , according to the Empirical Rule '? Let's now assume that we have no knowledge of the shape of the distribution (or the data are not bell shaped ), Use Chebyshev's Inequality to determine the minimum percentage of light bulbs with a life within 215 standard deviations of the mean . Use Chebyshev's Inequality to determine the minimum percentage of light bulbs with a life between 494 and 706 hours