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Distributions and the You work for a consumer watchdog publication and are testing the advertising claims of a tire manufacturer. The manufacturer claims that the life spans of the tires are normally distributed, with a mean of 40,000 miles and a standard deviation of 4000 miles. You test 16 tires and get the following life spans. Complete parts (a) through (c) below. 48,183 43,215 28,222 36,021 31,558 41,001 39,129 36,225 23,909 30,583 36,758 34,246 33,104 37,446 35,738 46,102 3 Frequ Frequ Frequ 26,336 45,756 26,336 45,756 26,336 45,756 Distance (in miles) Distance (in miles) Distance (in miles)