For # 8 you must use: z = (the value of x - the mean) / (the standard deviation divided by the square root of the number in the sample) 8). The average age of vehicles registered in the United States is 96 months.Assume the population is normally distributed with a standard deviation of 15months. Find the probability that the mean age of a sample of 36 vehicles isbetween 98 and 100 months? (In order to receive full credit, be sure you draw apicture, identify your variables, show any formulas and work and label youranswer correctly.

Given that, The average age of vehicles registered in the US is 96 months. Assume the population is…

Answered: 8). The average age of vehicles…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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For # 8 you must use: z = (the value of x - the mean) / (the standard deviation divided by the square root of the number in the sample)

8). The average age of vehicles registered in the United States is 96 months.
Assume the population is normally distributed with a standard deviation of 15
months. Find the probability that the mean age of a sample of 36 vehicles is
between 98 and 100 months? (In order to receive full credit, be sure you draw a
picture, identify your variables, show any formulas and work and label your
answer correctly.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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