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 ti normally distributed, with a mean of...

PLEASE solve that problem. Solve The standard deviation.


Extracted text: 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 ti normally distributed, with a mean of 40,000 miles and a standard deviation of 7500 miles. You test 16 tires and get the following life spans. Complete parts ( below. 48,854 41,439 26,895 38,919 32,129 39,649 41,423 35,083 D 24,680 32,992 39,044 36,579 34,198 38,590 36,914 45,120 (a) Draw a frequency histogram to display these data. Use five classes. Choose the correct answer below. O A. В. c. Life spans of tires Life spans of tires Life spans of tires