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Write a set of seven numbers with a mean of 50 and a standard deviation of 0. Is there more than one possible set of numbers? Explain.
This sample is 500 so the distribution of the sample means will be normal, no matter what the shape of the actual distribution of dollar losses.
You own a Pepsi bottling plant, and you are concerned about filling the bottles to the correct level. Should you conduct a one-tailed or two-tailed hypothesis test? Explain.
Thirty automobiles were tested for fuel efficiency in mpg. The following frequency distribution was obtained. Construct a histogram, frequency polygon and ogive for the data. Find the mean for this data
In a Singapore Edition of Business Times, diamond pricing we explored. The price of a diamond is based on the diamond's weight, color, and clarity. A Simple random sample of 18 one-half-carat diamonds had the following prices, in dollar's:
Derive the probability that a receptor is occupied by a ligand using a model which treats the L ligands in solution as distinguishable particles.
Use the range to calculate the standard deviation
A recent article in the Arizona Republic indicated that the mean selling price of the homes in the area is more than $220,000. Can we conclude that the mean selling price in the Goodyear, AZ, area is more than $220,000? Use the .01 significance le..
Using exponential smoothing and the time series provided below, find the forecast for time period 6. Use 0.2 as the smoothing constant (to 3 dec. pl).
Does nature heal best? A contrast (optional). The researchers who carried out the study of healing in newts described in the previous exercise conjectured that healing is fastest under natural conditions. If this is true, the population mean for t..
The 6 prime numbers together have probability 0.3 and the 14 other numbers together have probability 0.7. Test these hypotheses, using a = 5%. Design further experiments that illustrate the difficulties of random selection.
Is the probability that buyer 2 wins the auction equal to 1?- Compute the seller's expected revenue if the buyers implement the strategies (β1, β2).
suppose a previous study has shown the sample standard deviation of a particular model of automobile to be 3.12 mpg.
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