Using the regression results in column (2): a. is age an important determinant of earnings? use an appropriate statistical test and/or confidence interval to explain your answer. b. sally is a 29-year-old female college graduate. betsy is a 34-year-old female college graduate. construct a 95% confidence interval for the expected difference between their earnings (stock 246) stock, james h., mark watson. introduction to econometrics, 3rd edition. pearson, 20141028. vitalbook file. the citation provided is a guideline. check each citation for accuracy before use.

In order to gauge public opinion about how to handle iran's growing nuclear program, a research group surveyed 1010 americans by telephone and asked them to rate the threat iran's nuclear program poses to the world on a scale of 1 to 10. describe the population, sample, population parameters, and sample statistics. identify the population in the given problem. choose the correct answer below.

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Wilson company paid $5,000 for a 4-month insurance premium in advance on november 1, with coverage beginning on that date. the balance in the prepaid insurance account before adjustment at the end of the year is $5,000, and no adjustments had been made previously. the adjusting entry required on december 31 is: (a) debit cash. $5,000: credit prepaid insurance. $5,000. (b) debit prepaid insurance. $2,500: credit insurance expense. $2500. (c) debit prepaid insurance. $1250: credit insurance expense. $1250. (d) debit insurance expense. $1250: credit prepaid insurance. $1250. (e) debit insurance expense. $2500: credit prepaid insurance. $2500.