The number of employees on the payroll at a food processing plant is recorded at the start of each month. These data are provided in the file P12_03.xlsx. Perform a runs test and find a few auto-correlations to determine whether this time series is random.
Answer to relevant QuestionsThe quarterly numbers of applications for home mortgage loans at a branch office of Northern Central Bank are recorded in the file P12_04.xlsx. Perform a runs test and find a few autocorrelations to determine whether this ...The file P12_01.xlsx contains the monthly number of airline tickets sold by a travel agency.a. Does a linear trend appear to fit these data well? If so, estimate and interpret the linear trend model for this time series. ...The file P12_16.xlsx contains the daily closing prices of American Express stock for a one-year period. a. Use the random walk model to forecast the closing price of this stock on the next trading day.b. You can be about 95% ...The file P12_24.xlsx contains the daily closing prices of Procter & Gamble stock for a one-year period. Use only the 2003 data to estimate the trend component of the random walk model. Next, use the estimated random walk ...The file P12_02.xlsx contains the weekly sales at a local bookstore for each of the past 25 weeks.a. Specify one or more promising auto regression models based on autocorrelations of this time series. Estimate each model ...
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