145 4920461 Math 160 Online Sec 5468 Spring 2018 1st 8wk Homework: HW 5.1-5.2 Sc

Question

145 4920461 Math 160 Online Sec 5468 Spring 2018 1st 8wk Homework: HW 5.1-5.2 Score: 0.4 of 1 pt Marlina somo &1 2124/18 1123 PM Score: 95%, 16.15 of 17 ptg 5.1.37-T Question Help You work for a consumer watchdog publication and are testing the advertising claims of a ire manufacturer. The manufacturer claims that the life spans of the tres are nomally distributed with a mean of 40,000 miles and a standard deviation of 7500 miles. You test 16 tires and get the tollowing lite spans Complete parts (a) through (c) below 48,354 42,383 28,041 36,438 33,270 41,938 39,775 33,916 23,345 28,665 37,321 35,484 30,198 37,434 37,390 46,788 C. Yes, because the histogram is neither symmetric nor bell-shaped D No, because the histogram is neither symmetric nor bell shaped. (b) Find the mean of your sample The mean is (Round to one decimal place as needed.) .. 1.1 l./i |:/i.. (u) More Enter your answer in the answer box and then click Check Answer parts remaining 11:23 . SAMSUNG

Explanation / Answer

mean = (48354 + 42383 + 28041 + 36438 + 33270 + 41938 + 39775 + 33916 + 23345 + 28665 + 37321 + 35484 + 30198 + 37434 + 37390 + 46788) / 16 = 36296.25 = 36296.3

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