Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Consider the following time series data. Quarter Year 1 Year 2 Year 3 4 6 N N 3 6 3 W 5 6 4 5

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
Consider the following time series data. Quarter Year 1 Year 2 Year 3 4 6 N N 3 6 3 W 5 6 4 5 7 (a) Choose the correct time series plot. (i) Time Series Values Year 1. Year 1, Year 1. Year 1, Year 2. Wear Z, Year 2, Wear 2, Year 3, Year 3, Year 3. Year 3, Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter ] Quarter 4 Quarter 1 Quarter 2 Quarter ] Quarter 4 Time Period (ii) Time Series Values Year 1, Year 1, Year 1, Year 1. Year 2, Year 2, Wear 2. Year 2, Wear 3, Year 3, Year 3, Year 3. Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter ! Quarter 2 Quarter 3 Quarter 4 Quarter ! Quarter 2 Quarter ] Quarter 4 Time Period (iii) ries Values(iii) Time Series Values Year 1. Year 1, Year 1, Year 1, Year 2. Year 2, Year 2, Year 3, Year 3, Year 3. Year 3. Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter ] Quarter 4 Time Period (iv) Time Series Values Year 1, Year 1, Year 1. Year 1, Year 2. Year 2. Year 2. Year 2, Year 3, Year 3, Year 3. Year 3 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Time Period - Select your answer - What type of pattern exists in the data? Select your answer - (b) Use a multiple regression model with dummy variables as follows to develop an equation to account for seasonal effects in the data: Qtri = 1 if Quarter 1, 0 otherwise; Qtr2 = 1 if Quarter 2, 0 otherwise; Qtr3 = 1 if Quarter 3, 0 otherwise. If required, round your answers to three decimal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank (Example: -300). If the constant is "1" it must be entered in the box. Do not round intermediate calculation. y = Qtr1 + Qtr2 + Qtr3 (c) Compute the quarterly forecasts for next year based on the model you developed in part (b). If required, round your answers to three decimal places. Do not round intermediate calculation.(c) Compute the quarterly forecasts for next year based on the model you developed in part (b). If required, round your answers to three decimal places. Do not round intermediate calculation. Year Quarter Ft 4 1 4 2 4 3 4 4 (d) Use a multiple regresSIon model to develop an equation to account for trend and seasonal effects in the data. Use the dummy variables you developed in part (b) to capture seasonal effects and create a variable t such that t = 1 for Quarter 1 in Year 1, r = 2 for Quarter 2 in Year 1,... t = 12 for Quarter 4 in Year 3. If required, round your answers to three deCImal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank (Example: 7300). )7 = + Qtr1 + Qtr2 + Qtr3 + t (e) Compute the quarterly forecasts for next year based on the model you developed in part (d). Do not round your interim computations and round your final answer to three decimal places. Year Quarter Period Ft 4 1 l3 4 2 14 4 3 15 4 4 15 (f) Calculate the MSE for the regression models developed in parts (b) and (cl). If required, round your intermediate calculations and final answer to three decimal places. (f) Calculate the MSE for the regression models developed in parts (b) and (d). If requiredr round your intermediate calculations and final answer to three decimal places. Model developed in part (b) Model developed in part (d) MSE Is the model you developed in part (l3) or the model you developed in part (d) more effective? The model developed in - Select your answer - v is more effective because it has the - Select your answer - v MSE

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

WebAssign For A First Course In Differential Equations With Modeling Applications

Authors: Dennis G Zill

11th Edition

1337879770, 9781337879774

More Books

Students also viewed these Mathematics questions