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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?
explain the terms abnormal profits and normal profits
2. Given the following information: Consumers are very optimistic about the future. The price of oil has just doubled. The money supply is growing at a 6% rate. The government has
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The circular flow of income in an open economy An open economy is one in which international trade exists. Assume also that there is government spending and taxation. Thus
Derive saving- investment recognize in the context of an open economy. From national income accounting shows that an enhance in taxes (whereas transfer unchanged) must imply a
By given scenario answer the following questions. 1. What phase of the business cycle is the economy? 2. If inflation increased by 5% during the same period, what was the cha
Oligopoly is a marketplace where the deliver is controlled by a small group of companies. In this condition, the actions of single company will have a material effect on the whole
what is the difference between demand and supply?
money demand = 3500 - 250i what is the interest rate present if the money market is in equilibrium
what are the two precautions required while estimating national income by value added method?
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