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The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995.
Year Retail Sales
0 85.851
3 108.426
6 141.781
9 169.256
12 202.297
15 222.266
Estimate the retails sales in the U. S. in 2014. ______ billions of dollars.
find the contribution margin per haircut. with the barbers compensation at a fixed cost what are the totals?find the
The following table summarizes data between money spent on gambling and winnings for Robert.
What is the mean of these sample means? What is the standard deviation of all the sample means?
The time to complete 1 construction project for company A is exponentially distributed with a mean of 1 year. Therefore:
Calculate the percent of observations that fall within 1, 2, and 3 standard deviations of the mean. How do these results compare with the 68-95-99.7 rule?
derive expression for a and b in terms of standard deviation of x and y mean of x and y and the correlation bw x and y.
A sample of 35 different HR departments found that employees worked an average of 240.6 days a year. If the population standard deviation is 18.8 days
What is the average cost per burger when the firm produces 2 million hamburgers?
For each of the following situations, tell whether the two probabilities should be equal:
an educator wants to determine whether early exposure to school will affect iq. he enlists the aid of the parents of 12
Why is the central limit theorem such a powerful tool? Can it really be applied in a setting that has many people under study?
What are the researchers null and alternative hypotheses?- State your conclusion.- Explain in this context what the P-value means.
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