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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?
Separation of growth and fluctuation It is very useful to separate the evolution of a variable which grows over time into a trend and fluctuations around the trend. The graphs
what does international trade fails to its claims ?
Do you agee or disagree " Economic theory helps society reach economic goals that it has selected for itself?" Justify your answer.
As previously stated, the aim of the paper is to observe and analyse the effects of oil price shocks on key macroeconomic indicators in the UK economy. From this the aim is to conc
Define the term- Wages and income Remember that by wage we mainly mean what you receive for working one hour, whereas income is the total revenue from all sources over a longe
What is green GDP and How it is evaluated ?
Q. What do you mean by Patulin? It is a toxic and antibiotic metabolite produced by several species of Penicillin, Aspergillus and Paeciliomyces but the most important in the c
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
(1) Based on the article, describe as best you can: (i) the reference group for the cost benefit analysis, (ii) the purpose of the study (i.e., what is the "project" in this
Explain why anti-trust legislation supports a perfectly competitive market. Give at least one specific example of legislation to justify your explanation.
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