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An effort to reduce energy costs, a major university has installed more efficient lights as well as automatic sensors that turn the lights off when no movement is present in a room. Historically, the cost of lighting an average classroom for 1 week has been $265. To determine whether the changes have signficantly reduced costs, the university takes a sample of 117 classrooms. They find that the average cost for 1 week is $247 with a standard deviation of $74. When testing the hypothesis (at the 5% level of significance) that the average energy use has decreased from the past, what is the test statistic? (please round your answer to 2 decimal places).
Is it true that government revenues are increased because of lower tax rates? Ans) It is true to a point. The Laffer curve determines that revenues enhance as the tax rates rise
This problem involves the question of computing change for a given coin system. A coin system is defined to be a sequence of coin values v1 (a) Let c ≥ 2 be an integer constant
You make a monthly deposit of $1,000 into a saving account for the next 10 years. How much can you withdraw immediately after your last deposit if your saving account pays 6% per y
1. Christopher has $200,000 to invest, and he is considering the following business opportunity. He would use his $200,000 to buy a mechanical self-service car wash. He'll earn $40
Once we have monthly data on a price index we can evaluate the inflation. In most nations, the percentage change in price index during one month is small. Hence it is more common t
1. You are managing a breakfast and lunch only restaurant that sells all-inclusive plated meals (i.e. all lunches include any protein or hot foods as well as salads and sides on a
Recognize which of the following purchases is counted as a part of NI: a) Tata motors purchases tire from Good year to equip latest Indica. b) Tata motors purchases tires fr
Determine the present worth of a geometric gradient series with a cash flow of $50,000 in year 1 and increases of 6% each year through year 8. The interest rate is 10% per year.
with reference to incidence of taxation, explain with the help of a diagrams, who bears the incidence of taxation when the demand for a commodity is (i)perfectly inelastic (ii) uni
Are there any current subsidy or welfare issues that are being discussed or addressed in parliament or in municipalities
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