A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 62 months and a standard deviation of 9 months. Using the empirical rule (as presented in the book), what is the approximate percentage of cars that remain in service between 44 and 53 months? Do not enter the percent symbol. ans =

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A:

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: Empirical rule  P(-3σ+μ<X+3σ+μ)=99.73%  P(-2σ+μ<X+2σ+μ)=95% P(-σ+μ<X+σ+μ)=68%

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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A: Given that.   X~N( μ , ?^2 )   μ=54     , ?=4   Z-score =( x - μ )/?

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A: The bell shaped curve is called normal distribution which is symmetric about the mean. According to…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A:

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A: Empirical Rule :  The Empirical Rule states that the area under the normal distribution that is…

Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A:

Q: Assume that the heights of men applying for military academy training are normally distributed with…

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Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

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Q: im confused on this porblem

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Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A: Solution:  The distribution of the number of months in service for the fleet of cars is bell shaped…

Q: In a mid-stze company, the distribution of the number of phone calls answered each day by each of…

A:

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

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Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

A:

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Q: In a mid-size company, the distribution of the number of phone calls answered each day by each of…

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Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: Given: According to the empirical rule, Therfore,

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A:

Q: The physical plant at the main campus of a large state university recieves daily requests to replace…

A: From the provided information, Mean (µ) = 63 Standard deviation (σ) = 8 Using empirical rule,…

Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.