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Joans Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours).1.7, 1.5, 2.6, 2.2, 2.4, 2.3, 2.6, 3.0, 1.4, 2.3With a .05 level of significance, test to see whether the mean tree-planting time differs from two hours.
a. State the null and alternative hypotheses.
b. Compute the sample mean.
c. Compute the sample standard deviation.
d. What is the p-value?
e. What is your conclusion?
Q. Construction of real gross domestic product ? To be able to make reasonable comparisons of GDP over time, we should adjust for inflation. For instance, if prices are doubled
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In 1 to 2 sentences respond to the following comment. "Cleaning your own house is not counted in gross domestic product because it does not represent economic production."
A sample of 60 mutual funds was taken and the mean return in the sample was 13% with a standard deviation of 6.9%. The return on a particular index of stocks (against which the mut
I am trying to figure out how to calculate the eqilibrium level of income and the multiplier
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In a Poisson distribution U=4. A) What is the probability that X=2? B) What is the probability that X is 2?
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