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The following data on x 5 score on a measure of test anxiety and y 5 exam score for a sample of n 5 9 students are consistent with summary quantities given in the paper "Effects of Humor on Test Anxiety and Per- formance" (Psychological Reports [1999]: 1203-1212):
x 23 14 14 0 17 20 20 15 21
y 43 59 48 77 50 52 46 51 51
Higher values for x indicate higher levels of anxiety.
10 75.0
12 83.6
a. Construct a scatterplot of y = percentage who said they were more likely to purchase and x = grade. Does there appear to be a linear relationship between x and y?
b. Find the equation of the least-squares line.
Define a trade deficit and a trade surplus. What are the implications of a long-term trade deficit or trade surplus? What techniques are available to correct balance of payment deficit or surplus?
Identify an economic issue that is important in your community. You may choose to talk to your instructors and members of your family. View a list of economic policy topics you may choose to consider.
consider the following model for the macroeconomy.consumption function c a byimport function im k myexport function
What amount must be deposited into a savings account that pays 8% interest if the inflation rate is 10% and you want to set aside enough money to purchase a red tape cutting machine ten years after the deposit? The current cost of a red tape cutting ..
consider a coupon bond that pays 350 every year and repays its principal amount of 5000 at the end of four years. if
Introduction of ancient communities needs and wants of the ancient communities information on system practised in exchanging their goodslogical arrangements of facts conclusion
The table below depicts the prices and total costs a local used-book store faces. The bookstore competes with a number of similar stores, but it capitalizes on its location and the word-of-mouth reputation of the coffee it serves to its customers...
How do you choose between log-linear model and log-log model? How about linear log-linear? And how about linear-log and log-log? Why? How do you interpret coefficients of a A) log-Linear B) log-log c) linear-log model?
Assume there is a duopoly with the following demand equations Q1=30-P1+P2 and Q2=30-P2+P1. Marginal cost are given as MC1=6, MC2=0.
Is current U.S.Monetary Policy expansionary or restrictive?Do YOU think that current U.S. Fiscal and Monetary policies should be expansionary or contractionary? Briefly indicate why YOU think this way.
Sarah has $300 to allocate between movie tickets and opera tickets. The price of each opera ticket is $60, and the price of each movie ticket is $6. Her marginal rate of substitution of opera tickets for movie tickets equals 5, regardless of what mar..
as a supervisor for the hospital pharmacy that uses an integrated delivery system ids you are responsible for
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