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Listed below are the lengths (in minutes) of randomly selected CDs of country, rock, and movie soundtracks. Construct a 94% confidence interval for the mean length of all such CDs. Construct a 94% confidence interval for the mean length of all such CDs. Use MINITAB to find mean and standard deviation.
62.28 56.13 54.03 20.37 56.13 54.08 29.01 58.02 74.14 54.08
50.16 52.15 53.15 47.42 49.19 51.15 49.63 52.00 61.57 57.06
75.12 32.04 32.57 60.41 32.07 37.06 62.06 39.29 33.15 51.37
50.97 52.07 43.16 38.48 73.23 36.26 39.57 69.71 49.22 48.19
Write 1-2 paragraphs for each component of the model (days-to-repair; interval between breakdowns; lost revenue; putting it together).
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
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Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.
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Statistics is science of conducting studies to: Solve a system of equations.
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a polling company obtains an alphabetical list of names of voters in a precinct. they select every 20th person from
Give a point estimate for the difference between the proportion of college-aged women and the proportion of college-aged men who are registered to vote.
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