3. Oil Changes. Suppose that the mean time for an oil change at a "10-minute oil change joint" is 11.4 minutes with a standard deviation of 3.2 minutes. (Illustrate each with a graph!) a. Describe the sampling distribution of the of the mean time for an oil change. random variable: X= distribution: X- b. If a random car goes in for an oil change, what is the probability the mean oil change time is less than 11 minutes?

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A: 1000 0.6 600 1000000 600000 1200 0.3 360 1440000 432000 1500 0.1 150 2250000 225000

Q: In the right distribution If the mode = 85 and the meadian = 45, then the .. mean equal to .....

A: Given: Mode = 85 Median = 45

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A: Given: μ=300, σ=30.

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A: Hey there! Thank you for posting the question.  Since there are multiple questions posted, we will…

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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.