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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 5500 miles. You test 16 tires and get the following life spans. Complete parts (a) through (c) below. 48,945 42,213 24,051 36,117 32,209 41,001 42,888 37,719 D 23,231 29,347 34,274 36,641 30,122 36,334 33.621 44.904 (a) Draw a frequency histogram to display these data. Use five classes. Choose the correct answer below. OB. Oc. Life spans of tires Life spans of tires Life spans of tires 4374 25 Distance (in miles) Distance in miles) Distance (in miles) Is it reasonable to assume that the life spans are normally distributed? Why? Choose the correct answer below. OA No, because the histogram is neither symmetric nor bell-shaped. OB. Yes, because the histogram is neither symmetric nor bell-shaped. c. Yes, because the histogram is symmetric and bell-shaped. OD. No, because the histogram is symmetric and bell-shaped. (b) Find the mean of your sample. The mean is (Round to one decimal place as needed.)

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 5500 miles. You test 16 tires and get the following life spans. Complete parts (a) through (c) below. 48,945 42,213 24,051 36,117 32,209 41,001 42,888 37,719 D 23,231 29,347 34,274 36,641 30,122 36,334 33.621 44.904 (a) Draw a frequency histogram to display these data. Use five classes. Choose the correct answer below. OB. Oc. Life spans of tires Life spans of tires Life spans of tires 4374 25 Distance (in miles) Distance in miles) Distance (in miles) Is it reasonable to assume that the life spans are normally distributed? Why? Choose the correct answer below. OA No, because the histogram is neither symmetric nor bell-shaped. OB. Yes, because the histogram is neither symmetric nor bell-shaped. c. Yes, because the histogram is symmetric and bell-shaped. OD. No, because the histogram is symmetric and bell-shaped. (b) Find the mean of your sample. The mean is (Round to one decimal place as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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 5500 miles. You test 16 tires and get the following life spans. Complete parts (a) through (c) below. 48,945 42,213 24,051 36,117 32,209 41,001 42,888 37,719 D 23,231 29,347 34,274 36,641 30,122 36,334 33,621 44,904 (a) Draw a frequency histogram to display these data. Use five classes. Choose the correct answer below. OB. Life spans of tires Oc. Life spans of tires Life spans of tires 25 Distance (in miles) 4 Distance (in miles) Distance (in miles) Is it reasonable to assume that the life spans are normally distributed? Why? Choose the correct answer below. O A No, because the histogram is neither symmetric nor bell-shaped. O B. Yes, because the histogram is neither symmetric nor bell-shaped. c. Yes, because the histogram is symmetric and bel-shaped. O D. No, because the histogram is symmetric and bell-shaped. (b) Find the mean of your sample. The mean is (Round to one decimal place as needed.)
Transcribed Image 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 the tires are normally distributed, with a mean of 40,000 miles and a standard deviation of 5500 miles. You test 16 tires and get the following life spans. Complete parts (a) through (c) below. 48,945 42,213 24,051 36,117 32,209 41,001 42,888 37,719 D 23,231 29,347 34,274 36,641 30,122 36,334 33,621 44,904 (a) Draw a frequency histogram to display these data. Use five classes. Choose the correct answer below. OB. Life spans of tires Oc. Life spans of tires Life spans of tires 25 Distance (in miles) 4 Distance (in miles) Distance (in miles) Is it reasonable to assume that the life spans are normally distributed? Why? Choose the correct answer below. O A No, because the histogram is neither symmetric nor bell-shaped. O B. Yes, because the histogram is neither symmetric nor bell-shaped. c. Yes, because the histogram is symmetric and bel-shaped. O D. No, because the histogram is symmetric and bell-shaped. (b) Find the mean of your sample. The mean is (Round to one decimal place as needed.)
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