In its Fuel Economy Guide for 2008 model vehicles, the Environmental Protection Agency gives data on 1152 vehicles. There are a number of outliers, mainly vehicles with very poor gas mileage. If we ignore the outliers, however, the combined city and highway gas mileage of the other 1120 or so vehicles approximately Normal with mean 18.7 miles per gallon (mpg) and standard deviation 4.3 mpg. Question- How high must a 2008 vehicles gas mileage be in order to fall in the top 10% of vehicles?

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Q: Calculate the sample mean and the sample standard deviation to the nearest hundreths.

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Q: What is the standard deviation of the data set 14,23,9,12,21,18,8

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Q: a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds?…

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Q: Calculate the "sample standard deviation" for the following "sample data" 2, 4, 1, 6, 5, 8

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Q: what is the mean and standard deviation of the following sample:  10, 1, 2, 5, 9, 7, 2, 4

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A: From the provided information, Mean (µ) = $273 Standard deviation (σ) = $100 X~N (273, 100) Here X…

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A: Given d=850 and sd=1123 a) To test: H0:μd=0H1:μd≠0

Q: what is the mean and standard deviation of the following sample:  18, 1, 5, 1, 5

A: Solution:The mean is obtained below:The sample mean is 6.

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on…

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Q: Please answer the last part of C:

A: The mean difference is $850 and the sample deviation is sd is $1,123.

Q: Explain why s p is called the pooled sample standard deviation.

A:

Q: Find the standard deviation for the given sample data. 2, 5, 9, 13, 17, 20

A: Solution-: We find the standard deviation of the given data

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A: Given Information Mean (µ) = 178.1 Standard deviation (σ) = 40.7

Q: What is the Sample Skewness for the following numbers: mean of 106.89 , median of 87, and…

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A: From the provided information, Sample size (n) = 42 Mean difference = $850 Sample standard deviation…

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Q: What is the standard deviation for the data given: 12, 18, 16, 22 Select one: а. 17.33 b. 13 c. VT3

A: Solution : Given data is :12,18,16,22 x¯=∑xin=12+18+16+224=17

Q: Bank of America’s Consumer Spending Survey collected data on annual credit card charges in seven…

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