The fuel economy sticker on a new SUV’s window sticker indicates the owner can expect 16 mpg in city driving, 20 mpg highway driving and 18 mpg overall. Accurate gasoline records for one such vehicle were kept, and a random sample of mileage per tank for 50 fill-ups of gasoline was collected: 17.617.718.122.017.019.418.917.421.019.218.319.120.716.719.418.218.417.117.415.817.918.016.317.517.320.419.121.018.119.019.618.916.818.217.619.118.016.820.917.917.720.318.619.016.519.418.618.617.318.7Can we consider the data to be normally distributed? Explain.Calculate the sample mean and standard deviation for this data. Round your answers to three decimal places.

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Description: The fuel economy sticker on a new SUV’s window sticker indicates the owner can expect 16 mpg in city driving, 20 mpg highway driving and 18 mpg overall. Accurate gasoline records for one such vehicle were kept, and a random sample of mileage per tank

Quantile-Quantile Plot: The above Q-Q plot describes that all the observations lie on a straight…

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

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The fuel economy sticker on a new SUV’s window sticker indicates the owner can expect 16 mpg in city driving, 20 mpg highway driving and 18 mpg overall. Accurate gasoline records for one such vehicle were kept, and a random sample of mileage per tank for 50 fill-ups of gasoline was collected:

17.6	17.7	18.1	22.0	17.0	19.4	18.9	17.4	21.0	19.2
18.3	19.1	20.7	16.7	19.4	18.2	18.4	17.1	17.4	15.8
17.9	18.0	16.3	17.5	17.3	20.4	19.1	21.0	18.1	19.0
19.6	18.9	16.8	18.2	17.6	19.1	18.0	16.8	20.9	17.9
17.7	20.3	18.6	19.0	16.5	19.4	18.6	18.6	17.3	18.7

Can we consider the data to be normally distributed? Explain.
Calculate the sample mean and standard deviation for this data. Round your answers to three decimal places.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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