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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?
Consider the economic data for Country A: Unemployment level of 15% Natural Rate of Unemployment is 6%. Required Reserves is 25% C = 50 + 0.75Y; I = 600; G = 250 (note: T = 200 for
Firms such a Moody's and Standard &Poor's study corporations that issue bonds. They publish "ratings" for the bonds- evaluation of the likelihood of default. Suppose these rating c
#question.Q8. In 1961, Germany faced the dilemma of an external surplus and a booming economy. As a result, speculative capital flowed into Germany and the Germans felt obliged to
definition and charactoristics of index numbers.problems while constructing index numbers
COMBINED ISLM MODEL
how can a country maintain equilibrium GDP with foreign trade?
Suppose that a particular large hotel has 790 rooms. Furthermore, suppose that the demand for the hotel's rooms are normally distributed with a mean demand of 733 rooms with a stan
Explain why we cannot measure the national product simply by adding up the production of all firms. Why do the economists use real GDP rather than nominal GDP to gauge economic
A 415V, 3-phase, 4 wires, star-connected system supplies three resistive loads as shown in Figure. Determine (a) The current in each line and (b) The current in the neutr
the circular flow of income in an governed economy
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