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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 about the diminishing returns to an input. There are diminishing returns to an input while an increase within the quantity of which input, holding the levels of each of
The sales counter next to the soft toy display in Shambles receives a customer every 2-4 minutes. Most of these customers (80%) are buying toys and are dealt with by the cashier i
An electronic chip is to be implanted in the body. During in vitro (in the lab) testing it is observed that the chip will dissolve over time if exposed to liquid with similar pH to
Marginal Propensity to save (MPS) is the ratio of change in total saving to change in total disposable income. Symbolically, MPS = ?S/?Y For example, total
Government revenue, government spending and net exports G, NT and NX are exogenous variables in the classical model In the classical model (and
1. Calculate the duration of a par value bond with a coupon rate of 8% and a remaining time to maturity of 5 years. 2. On September 26, the spot price of gold was $320 per ounc
a complete demend funtion equation
Discuss what policy changes he might be likely to propose with respect the issue that you identified as one about which he might be concerned.
what wil hapen to the real wage if the nominal wages and prices rise at the same rate per year?
what is static and dynamic multiplier in keynesian theory?
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