Statistics and Regression Analysis
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Questions and Answers

What is the interpretation of the regression equation ŷ = 30000 + 4x?

  • An increase of $1 in advertising is associated with an increase of $4 in sales.
  • An increase of $1 in advertising is associated with an increase of $34,000 in sales.
  • An increase of $4 in advertising is associated with an increase of $4000 in sales.
  • An increase of $1 in advertising is associated with an increase of $4000 in sales. (correct)

    • What does the symbol β1ˆ represent in a regression equation?

  • The intercept of the regression line
  • The slope of the regression line (correct)
  • The coefficient of determination
  • The residual of the regression

    • What type of test is used to determine the statistical significance of a regression parameter?

  • Jarque-Bera test
  • F-test
  • Chi-square test
  • Student's t-test (correct)

    • What is the purpose of testing the statistical significance of a regression parameter?

    <p>To determine the significance of the regression parameter</p> Signup and view all the answers

    What is the null hypothesis in a test of the statistical significance of a regression parameter?

    <p>β1 = 0</p> Signup and view all the answers

    What does a statistically significant regression parameter indicate?

    <p>There is a significant relationship between the variables</p> Signup and view all the answers

    What is the cost of annual interest if the company uses the method of equal installments?

    <p>57,240 tugriks</p> Signup and view all the answers

    Which of the following is true?

    <p>Revenues exceed expenses</p> Signup and view all the answers

    Which financial statement reports assets, liabilities, and equity?

    <p>Statement of Financial Position</p> Signup and view all the answers

    What is NOT a type of accrual?

    <p>Cash payment</p> Signup and view all the answers

    What is the result of the company's operations for the year?

    <p>Net income of $70,000</p> Signup and view all the answers

    What is the balance of the owner's capital account at the end of the year?

    <p>$85,000</p> Signup and view all the answers

    What does a coefficient of determination of 95% indicate?

    <p>95% of the variation in the dependent variable is explained by the independent variable</p> Signup and view all the answers

    What is a characteristic of a multiple regression equation?

    <p>There is only one dependent variable</p> Signup and view all the answers

    What is the formula for the total sum of squares in a regression model?

    <p>∑(yi - ȳ)2</p> Signup and view all the answers

    What is the sum of squares of the residuals divided by in a regression model?

    <p>The sum of squares of the regression</p> Signup and view all the answers

    What is the interpretation of the coefficient B1 in a simple linear regression equation Yi = B0 + B1·Xi?

    <p>For a one-unit change in Xi, Yi changes by B1 units</p> Signup and view all the answers

    What does the R2 term measure in a regression model?

    <p>The proportion of the variance in the dependent variable that is predictable from the independent variable</p> Signup and view all the answers

    What is the range of the intercept coefficient β1 in the regression equation?

    <p>−0.44≤β1≤1.4</p> Signup and view all the answers

    What is the predicted value of y when x0 = 3 in the regression equation yˆi=4+5.6⋅xi−1.5⋅x2i?

    <p>7.3</p> Signup and view all the answers

    What is the value of the determinant coefficient in the given multiple regression equation?

    <p>0.93</p> Signup and view all the answers

    What is the formula for the trend model TRˆt=16.23+0.52t+0.37∙t2?

    <p>TRˆt=16.23+0.52t+0.37∙t2</p> Signup and view all the answers

    What is the sum of the squares of the residuals in the given multiple regression equation?

    <p>400</p> Signup and view all the answers

    What is the number of observations in the given data set for the regression equation yˆi=4+5.6⋅xi−1.5⋅x2i?

    <p>None of the above</p> Signup and view all the answers

    What is the difference in the value of inventory using FIFO and LIFO methods?

    <p>3,700</p> Signup and view all the answers

    What amount will the bank receive from the sale of the 3-month bill with 8% annual interest?

    <p>401,333</p> Signup and view all the answers

    How will the temporary disability benefit of 148,500 be recorded in the journal?

    <p>Debit Salaries and Wages Expense 82,500, debit VAT Payable 66,000, and credit Provision for Temporary Disability Benefits 148,500</p> Signup and view all the answers

    What is the net realizable value of accounts receivable after deducting the 2% doubtful accounts?

    <p>690,000</p> Signup and view all the answers

    What is the correct method of inventory valuation when the last-in, first-out (LIFO) method is used?

    <p>The most recent purchases are assumed to be the first to be sold</p> Signup and view all the answers

    What is the gross profit when the sales revenue is 15,000,000 and the cost of goods sold is 12,000,000?

    <p>3,000,000</p> Signup and view all the answers

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