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For the consumer price index (CPI) values shown, calculate the rate of inflation in each year from 1930 to 1933.
Year: 1929 1930 1931 1932 1933CPI: 51.3 50.0 45.6 40.9 38.8
Simple linear regression predicting the change in performance (in seconds taken to run a race) for 800m runners by the average hours of training undertaken per week during the pre-season.
Construct a table to report the regressions above, which includes the estimates, the standard errors, and adjusted R-square and find the estimated coefficient of ln(Y earsSchool) in Regression B. What is the interpretation of it?
Suppose Y is household income and he is household expenditures on health care. Use the data from the regression output to answer the given question:
What is the risk (standard deviation) that this investment manager has assumed in his calculation if it is known that returns are normally distributed with a mean of 5.6%?
State what is its distribution under the null and why and explain the conditions under which you would reject H0
Advertising can inform purchaser, but sellers must incur expenses to advertise. If so, advertising can result in higher prices to customers.
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:
Plot the level and first difference of lnrgdpaus and briefly comment on the graphs and obtain the sample correlograms of the level and first difference of lnrgdpaus for 20 lags. What do they suggest to you?
Estimating equation through a correcting factor to correct heteroskedasticity may cause extra correlation to enter the model, which increase the R^2.
A company experiences rising returns to scale; that is, doubling all its inputs more than doubles its output. What can be inferred about the company's short-run costs?
We have three variables, Information is 2000-2005. I use OLS to Determine the model and get a standard result.
If a random sample of 400 customers is selected, what is the probability of Type I error using this decision rule?
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