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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?
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Suppose that a household in a two-period model has income of $30,000 in period 1 and $25,000 in period 2, and the interest rate is 75 percent. Assume that the price of the good is
discuss the different of cost?draw the cost curves
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Suppose home cost pricing prevails in international trade, while world output is declining. Consider two economies, A and B, both having floating exchange rates and the same moneta
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