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Compare the three different measures of central tendency in detail please?
Are all measures of central tendency appropriate for all scales of measurement? Why or why not?
Two fair dice, one red and one green, are tossed. Explain whether the following pairs of events are mutually exclusive, independent, both, or neither:
How many of the 110 scores are expected to be below 34.16 ?(two standard deviations above the? mean)?
A company produces and sells four grades of industrial solvents - A, B, C, and D.The selling price per gallon of each grade of solventis $6.40, $5.00, $4.20, and $3.50 respectively.
Find the mean and the standard deviation of the sampling distribution of x, and find an interval containing 95.44 percent of all possible sample mean returns.
suppose you are interested in bidding on a piece of land and you know that one other bidder is interested. the seller
The 2011 gross sales of all firms in a large city have a mean of $2.3 million and a standard deviation of $0.6 million Using the Chebysev's theorem, find at least what percentage of firms in this city had 2011 gross sales of $1.1 to $3.5 million.
what effect does the sample size have upon the maximum error of
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
Now that you are an adult, you decide to test one of the truisms passed along by your mother: "Cheaters never win in the end." You randomly assign a group of 20 children to either cheat or to play fair on a scavenger hunt.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
For the previous problem, compute a 0.95 confidence interval and verify that this interval is consistent with your decision about whether to reject the null hypothesis.
question a bacteria culture starts with 500 bacteria and grows at a rate proportional to its size. after 3 hours there
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