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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?
Determine about the gross domestic product Growth By (nominal) GDP-growth we mean % change in (nominal) GDP over a particular period of time. Real GDP growth is stated as perce
what cause keynesian unemployment?
An electrical company audit indicates that motor consumption is 4x106 kWh per year. By upgrading to high efficiency motors a 10% savings can be made. The additional cost for the mo
The managers of Firm A recommend that Firm A purchase Firm B because the purchase will diversify the business of Firm A. Diversification of risks is a desirable strategy for indivi
Example of Fixed Investment-ACCOUNTING SYSTEM Consider again the economy in example III. An inventor offers to construct some machines for each of the three companies which wo
The following table contains data on the relationship between saving and income. Rearrange these data into a meaningful order and graph them on the accompanying grid. What is the s
The Phillips curve in Lowland takes the form of ? = 0.04 - 0.5 (u - 0.05), where ? is the actual inflation rate and u is the unemployment rate. The Phillips curve in Highland takes
Who sets the prices in the market and what is the nature of competition? Is it buyer versus sellers or buyer versus buyers? What happens if the price is too high or too low? Is the
Need answers for the questions (Chapters 10, 11 & 12) Please see attached questions. Thanks!
Aggregate demand with inflation In previous versions of Keynesian model, Components of aggregate demand did not depend on P. In IS-LM and in AS-AD models, investments depended
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