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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?
An ecologist has been reading the literature on the subject of factors affecting growth and metamorphosis of tadpoles in ponds. Some frog species (e.g. Hyla gratiosa) reproduce in
Definition of Money We should define what we mean by money. Money has a long as well as interesting history and an understanding of how we came to use money is useful for any
Four Hertzian dipoles (oriented in the z-dir.) are placed on an x-y plane with spacing (d=λ o /2) between them as shown in figure. a) Derive the array factor for this setup b
Example of Indirect Taxes and Subsidies- ACCOUNTING SYSTEM We now permit our government to impose what are called indirect taxes. This category includes sales tax, excise tax,
Critically evaluate measures used by governments and central banks to manage the economies of their countries. By critical evaluation use convincing arguments for or against measur
i wan''t the answer of this Q Question 3 (5 marks) Most studies of firms’ long run costs have found that average costs decline as firms produce increasingly larger output levels (
GKX Industries expects sales of its hydraulic seals (in inch and metric sizes) to increase according to the cash flow sequence $70+4k, where k is in years and cash flow is in $1000
Read "How Did Economists Get It So Wrong" by Paul Krugman and second, the blog "History of Economics Playground", by Pedro Duarte, Tiago Mata, Clement Levallois, Yann Grd...etc., t
can a country have a current account deficit and a capital account deficit at the same time?
Let us now see a bit more closely how monetary policy works. See Figure Figure The initial equilibrium at point E is on the initial LM schedule that corresponds to a
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