Econometrics Questions
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In a time series, regular variation that is repeated within a year is called
The merchants in South Carolina suffered flood damage in May 2015. Stores were closed for remodeling nearly two months. What is this type of variation in sales called? a. Secular trend b. Seasonal variation c. Cyclical variation d. Episodic variation
Economic periods of prosperity followed by recession are described as:a. Secular trend b. Seasonal variation c. Cyclical variation d. Erratic variation
The seasonal trend can be predicted with multiple regression models using indicator variables or with Seasonal Exponential Smoothing.
Logistic Regression predicts the outcome for a
Why is forecasting considered essential to managing a firm?a. To develop plans for possible new plants b. To have raw materials available for future demand c. To develop plans for future financingd. To have enough staff for future needs e. All of the above
If Q4 of 2020 occurred in t of 28, what quarter and year would t of 29 represent?
It does not usually yield an R Square value as high as multiple regression models for continuous variables.
Jeremy Valdez thinks he has found the source of a series of #N/A errors in his spreadsheet.He is ready to begin correcting the errors but would like a way to monitor how the resultschange when the formulas are modified. What model auditing tool should he use?
Ava Diego, a doctoral student, is researching car loans issued at a local bank. She prepared asample of 200 to determine if there is a relationship between the loan amount, length of theloan, and interest rate provided. The regression results are in the table below. Which model ismore suitable for prediction and what is the best fit reason?Variable Model 1 p-value Model 2 p-valueConstant 114.325 0.000 110.54 0.000InterestRate106.505 (0.000) 108.650 (0.000)LoanLength0.2074 (0.000) 0.3290 (0.006)Interest× LoanNA −0.1430 (0.0005)AdjustedR 20.2178 0.2089
Jeremy Valdez found three #N/A formula errors in his spreadsheet. Thinking an error in onecell is causing errors in the following cells, he decided to use the__________ formulaauditing tool.
In the following logarithmic regression model, β 1 × 0.01 measures the approximate unitchange in E(y) when x increases. If β 1 = 2,000, then what is the unit change in E(y)?
Cross-Industry Standard Process for Data Mining (CRISP-DM) consists of six phases. Whichof the following is the first phase?
What type of cell references is Sophia using in the following Excel formula: =IF($B3="Non-Management", $B$12, $C$12)?
Consider the following quadratic model, y = 29 + 1.50x − 0.25x 2 . Predict y when x = 14.
What type of cell references is Sophia using in the following Excel formula:=IF(D4="Management", B$12, C$12)?
The following spreadsheet and formula results in what type of common spreadsheet error?A B1 Total Employee Salaries23 Employee Name Salary4 Fletcher Davis $ 54,900.005 Simon Jennings $ 35,000.006 Ainsley Smart $ 22,500.007 Casey Manning $ 85,000.008 Moira Fowler $ 49,000.009 Grand Total =SUM(B4:B9)
Below is an influence diagram for a basic make versus buy manufacturing decision. What is the final target output variable?
Tess is tasked with analyzing a data set with multiple variables with various scales. To reducethe difference in scale in variables, she is following a common process called_____________ to make the observations unit-free.
Cross-Industry Standard Process for Data Mining (CRISP-DM) consists of six phases. Of thesix, which one represents the phase where data wrangling occurs?