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Consider a model of the influence of the average number of cigarettes the mother smoked per day during pregnancy on infant birth weight. The following simple regression model was estimated with data on n = 1388 births:weight = 119.77-0.514×cigarettes (17.2) (0.25)where the standard errors of the estimates are in the parathesis.
a) Test whether the slope is 0.
b) Calculate the p-value for the estimate of slope.
c) Construct a 95% confidence interval for the slope.
Ball bearings cost $.05 each, and bubblegum costs $.20 each. Your enjoyment of the experiment will be characterized by the utility function U(B,G) = (B^.2) * (G^.8). If you have $10 to spend on this experiment, how many ball bearings will you buy
Pizza costs $4 a slice and cigarettes cost $10 a pack. Evan currently uses his daily income to purchase 10 slices of pizza and 2 packs of cigarettes a day. How do I determine the daily income and budget set and as far as graphing goes
You are a monopolist selling bowties for dogs. If B is the number of bowties, you have a total cost given by C=(B^2)/2 and a Marginal cost given by MC=B. The market for bowties is characterized by an inverse demand curve of P=90-B.
suppose that you randomly draw a large number of values from the standard normal distribution. what percentage of the time would you expect to draw a value greater than or equal to two?
Suppose that the total benefit and total cost from an activity are, respectively, given by the following equations: B(Q)=150+28Q-5Q(squared) and C(Q)=100+8Q. (Note:MB(Q)=28-10Q and MC(Q)=8.) a. write out the equation for net benefits.
Steven has an income of $50, which he can spend on two goods: DVD and cups of iced coffee. Both are normal goods for him; each DVD costs $10 and each cup of iced tea costs $2. For each of the following situations
Determine the uniform quarterly series in quarters 0 through 12 of a cash inflow of $5,000 in quarter 1; $10,000 in quarters 2 to 5; and $12,000 in quarters 6 - 12 with an interest rate of 15 %.
There are 200 pounds of food on an island that must be allocated between 2 marooned sailors. The utility function of the first sailor is given by Utility= ( F1) Where F1 is the quantity of food consumed by the first sailor. For the second sailor ut..
Ymir Larson farms near Niffleheim, Minnesota. He works 80 hours a week. He can either grow rutabagas or raise pigs. Every hour that he spends growing rutabagas gives him $2 of income this year. Every hour that he spends raising pigs this year will..
Any change in the economy's total expenditures would be expected to translate into a change in GDP that was larger than the initial change in spending. This phenomenon is known as the multiplier effect. Explain how the multiplier effect works.
Assume that securitization combined with borrowing and irrational exuberance in Hyperville have driven up the value of existing financial securities at a geometric rate, specifically from $2 to $4 to $8 to $16 to $32 to $64 over a six-year time pe..
How would you modify the model to capture this effect. How would you test the null hypothesis that the value of β2(effect of X2) is constant against the alternative hypothesis that the value of β2(effect of X2) increased when X1 increased.
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