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(a) Write a program to fit a single hidden layer neural network (ten hidden units) via back-propagation and weight decay.
(b) Apply it to 100 observations from the model
where σ is the sigmoid function, Z is standard normal, X = (X1, X2), each Xj being independent standard normal, and a1 = (3, 3), a2 = (3, -3). Generate a test sample of size 1000, and plot the training and test error curves as a function of the number of training epochs, for different values of the weight decay parameter. Discuss the overfitting behavior in each case.
(c) Vary the number of hidden units in the network, from 1 up to 10, and determine the minimum number needed to perform well for this task.
a) Calculate the coefficients for price, advertising, income and cross-price with soda pop. b) If the current company cost for a bag of popcorn is $0.45, including cost of corn, cost to pop it and the bag, is this the profit maximizing price?
The French government announced plans to convert state-owned power firms EDF and GDF into separate limited companies that operate in geographically distinct markets. BBC News reported that France's CFT union responded by organizing a mass strike
Suppose a second nation has the following data. Plot the PPC, and then determine which nation has the comparative advantage in which activity. Show whether the two nations can gain from specialization and trade.
Suppose the cross-price elasticity of demand between goods X and Y is -5. How much would the price of good Y have to change in order to increase the consumption of good X by 50 percent
The BXC Company manufactures various types of parts for automobiles. The manger of the factory wants to get a better understanding of the overhead costs. The overhead costs include supervision, indirect labor, supplies, payroll taxes
Lori, who is risk averse, has two pieces of jewelry, each worth $400. She wants to send them to her sister in Mexico. She is concerned about the safety of shipping them. She believes that the probability that a shipped package will not arrive is q..
American Pulp Corp (APC) has entered into a contract to harvest timber for $450,000. The total estimated available harvest is 150 million board-feet. What is the depletion allowance for years 1 to 3, if 42,45.
Suppose that the price elasticity of demand for cigarettes is.46 in the short run and 1.89 in the long run, the income elasticity of demand for cigarettes is .50, the cross price elasticity of demand between cigarettes and alcohol is -.70.
There are two players i = 1,2. Each player announces a number xi ? {0, 1, 2,...,10}g and the announcement is done simultaneously. The one who says lower number wins. If the player wins, he gets 1$, if he loses, he gets 0.
The final exam is now available, and the student must do current research and use critical-thinking in responding to the question below
The state Medicaid agency has set a rate of $5.50 per visit for all Medicaid enrollees who visit a physician. Each physician also has private paying patients. The demand curve for each physician can be characterized as follows
What is the probability that Z is smaller than 1.02? b.) What is the probability that Z is greater than 0.65? c.) What is the probability that Z is between -2 and -0.5? d.) What is the probability that the interval [Z-1, Z+1] contains the value 0?
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