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Independent random samples of 64 observations each are chosen from two normal distributions with the following means and standard deviations.population 1u1 = 12o1 = 4population 2:u2=10o2 = 3
let xbar1 and xbar2 denote the two sample means.
a) Give the mean and standard deviation of the sampling distribution of xbar1.
b) Give the mean and standard deviation of the sampling distribution of xbar2.
c) Suppose you were to calculate the difference between the sample means (xbar1-xbar2). Find the mean and standard deviation of the sampling distribution of (xbar1-xbar2).
d) Will the statistic (xbar1-xbar2) be normally distributed? Explain.
A multiplicative demand function form: Qd= a*P^b1*Y^b2*Po^b3 is determine using cross sectional data and 224 observations. The regression results were given below:
What is the cost function, marginal cost function, and average cost function for each plant? b) What is the efficient scale and minimum average cost for each plant? c) What is the cost function for the firm?
Suppose annual salaries for sales associates from a particular store have a mean of $32,500 and a standard deviation of $2,500. a. Calculate and interpret the z-score for a sales associate who makes $36,000.
a. What is the opportunity cost of a pie at Bakery 1 b. What is the opportunity cost of a cookie at Bakery 2 c. Which bakery has a comparative advantage in the production of cookies d. Draw the production possibilities curve showing the combined effo..
Suppose that ranchers can buy up to a collective total of 200 cows and run them on the open range. The value of each cow after it has grazed is given by V= $2000-10C, where C is the total number of cows on the range.
Solve Tracy's problem of how often to go to the ATM when the nominal interest rate on her bank account is 10 perent, she spends $30 each day, it costs her $.50 each time she uses her ATM, and she thinks that there is a 15 percent chance.
Now, suppose that initially z=2 and the economy is in the steady state you calculated in part a. . Then suppose that z falls to 1.8 permanently. What is the new steady state? Determine capital per worker znd output per worker in each of the first ..
A monopolist has two types of customers. There are 100 of Type A, who will each pay up to $10 for a single unit of the good, and 50 of Type B, who will each pay up to either $8. Neither is willing to purchase additional units at any price. If it m..
Consider an economy where, consumer's utility function is given as U(C,L)=C-(1/2)L2 . where C is consumption and L is labor. The production technology is Y=(1.6)L-(1/2)L2. The turnover cost per labor is (0.36)/(w/p) (a) What happens to t as real w..
Suppose there are two firms in a market who each simultaneously choose a quantity. Firms 1s quantity is q1 and firms 2s is q2. Therefore the market quantity is Q=q1+q2. The market demand curve is given by P=100-4Q. Also, each firm has constant mar..
If Mr. Lee decides to take the job, he knows that he can sell the store for $350,000 because of the goodwill built with a steady clientele of neighborhood customers and the excellent location of the building. He would still hold on to the building..
Suppose that a firm faces a demand curve that has a constant elasticity of -2. This demand curve is given by q = 256/P^2. Suppose also that the firm has a marginal cost curve of the form MC = 0.001q. a) Graph these demand and marginal cost curves
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