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44 third grade students can be considered to be an SRS in asuburban school district with a sample mean of = 35.091. DPR scoresare approximately normal. Suppose the standard deviation ofscores in this school district is known to be σ = 11. The researcher believes that the mean score m of all third graders inthis district is higher than the national mean, which is 32.1) State H0 & Ha2) Calculate the test statistic and give both the test statistic and P-value3) Give a 95% confidence interval for the mean DPR scores and state whether the confidence interval includes m4) State your conclusion based on α =5%5) Would your conclusion in question #4 change at 1%significance level? Explain why or why not?
Find E(Z) (1 dp) 2. Assuming that X and Y are statistically independent find var(Z) (1 dp) 3. Assuming that cov(X,Y) = 2 find var(Z) (1dp)
A company desires to estimate the cost of building a 600-MW fossil-fuel plant for the assembly of its new long-distance aircraft. It is known that a 200-MW plan cost $100 million 20 years ago when the approximate cost index was 400, and the cost i..
when I was talking about insurance, when I ask about the maximum this person would pay to buy insurance I said that it would be the risk premium: $4823.1 - Then I derived the utility in this case, with certainty this person has wealth $100,000 + $..
A woman deposit $3500 dollars in a retirement account every year. If her account pays an average of 6% interest and she makes 38 deposits before she retires, how much money can she withdraw in 20 equal payments beginning one year after her last de..
A factory benefits from discharging effluent, q, into a lake. The marginal benefit function is given by 60-2q. The pollution causes damages to two nearby communities. The marginal damages to Community A are 1q. The marginal damages to community B ..
A monopoly is considering selling several units of a homogeneous product as a single packge. A typical consumer's demand for the product is Qd= 110-0.5P, and the marginal cost of product is 140. A. Determine the optimal number of units ot put in a..
A corporation purchased a computer system for use by the firm's engineers. The system cost $500,000. At the end of its depreciable life, the salvage value for the system is $25,000. Compute the depreciation and book value schedule using the MACR..
1-Concisely explain the economic role of brokers, dealers, investment bankers and the role of the New York Stock Exchange specialist 2-If a bond dealer bought a $100,000 municipal bond at 92% of par and sold it at 96% of par
For the Exchange variable, show the frequency and percent frequency for AMEX, NYSE, and OTC. Construct a bar graph similar to Figure 1.5 for the Exchange variable. d. Show the frequency distribution for the Gross Profit Margin using the five inter..
Suppose the production function is Q = 1.52L.6K.4, and K = 100. a. What is the equation for the average product of labor If L=50, what is the value of the average product of labor
If the price of Good A increases by 50% from its original price which indifference curve will this consumer end up on Will the consumer be buying more of Good Y, more of Good X, or more of both goods.At the point of consumer equilibrium what is the..
Then determine NDP. The Expenditure approach equals out to $361 Billion, the way to find this is to add up all the expenses, and the Income approach equals out to $380 billion and the way to find this part is to add up all the income. With that de..
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