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Please answer the following question, I am struggled with it Problem 1. When John started his freshman year at GWU, his parents decided to make

Please answer the following question, I am struggled with it

Problem 1. When John started his freshman year at GWU, his parents decided to make a basket of items that included his spending on major items so they can track his spending and compute inflation rates for the basket. John is now a junior (finishing up his 6th semester at GWU).His parents have the complete data until the end of 5th semester. To save you computation time, I included only three items from the basket:

Item 1: Textbook

Item 2: Eating at High End Restaurants

Item 3: Electronic items/Cell phones/laptop/tablet

Quantity of itemsAverage Price of each item ($)

tSemester123 tSemester123.

1S17351S1$70$35$200

2S25522S2$100$50$500

3S38233S3$60$80$400

4S410404S4$80$40$300

5S56515S5$120$50$900

6S6---6S6---

Use the information provided above, answer (compute) all the questions (CPIs) below:

a)Laspeyres price index for Semester 4 (S4)

b)Paasche Price Index for Semester 4 (S4)

c)Fisher for Price Index for Semester 4 (S4)

d)Lowe's Price Index for Semester 4 (S4) -- For this, use S3 basket as the base

e)Establish a Run chart (Chapter 13) for textbook price only (identify the center line and upper/control limits using the data provided) ---here, your answer can be based on the totalspending on the textbookper semester or average spending on the textbook - you decide on the chart you prefer --- All I want for youis to establish a norm (center line and upper/lower control limits based on 6-sigma rule)

Question 2:

Using the average price spent on Electronic items/Cell phones/laptop/tablet, provided above, as our time series data,

a)Using the moving average of two period forecast the spending on this item for Semesters 6 and 8 (0.5 pt)

b)Using simple exponential smoothing method and w=0.60, forecast the spending for this item in Semesters 6 and 8 (1 pt)

c)Using double exponential smoothing (Holt's) method and w=0.60, ?=0.2, forecast the spending for this item in Semesters 6 and 8 (1.5 pts)

Question3:

Using the average price spent on Electronic items/Cell phones/laptop/tablet, provided above, compute Autocorrelation of lag 1 and lag 2.(0.5 for each)

Problem 4. Two forecasting methods have produced the following forecast for the past five months.

Actual Forecast 1Forecast 2 .

10 119

8 107

10 811

6 67

9810.

a)Compute all three popular measures of forecast accuracy for the Forecast 1.(0.5 pt)

b)Compute all three popular measures of forecast accuracy for the Forecast 2.(0.5 pt)

c)Based on the results for MAD (mean absolute deviation) statistics which forecast method do you recommend? (.5 pt)

image text in transcribedimage text in transcribed
Problem 1. When John started his freshman year at GWU, his parents decided to create a basket of items that included his spending on major items so they can track his spending and compute inflation rates for the basket. John is now a junior (finishing up his 6 semester at GWU). His parents have the complete data until the end of 5th semester. To save you computation time, I included only three items from the basket:- Item 1: Textbook Item 2: Eating at High End Restaurants Item 3: Electronic items/Cell phones/laptop/tablet Quantity of items Average Price of each item ($)~ t_ Semester 2 t Semester 2 3 $1 S1 $70 $35 $200~ $2 5 $2 $100 $50 $500~ $3 $3 $60 $80 $400- $4 10 $80 $40 $300- $5 $5 $120 $50 $900- $6 Use the information provided above, answer (compute) all the questions (CPIs) below: a) Laspeyres price index for Semester 4 ($4) - 1 point b) Paasche Price Index for Semester 4 ($4) - 1 point c) Fisher for Price Index for Semester 4 ($4) - 0.5 point d) Lowe's Price Index for Semester 4 ($4) - 1 point -- For this, use $3 basket as the base e) Establish a Run chart (Chapter 13) for textbook price only (identify the center line and upper/control limits using the data provided) --- here, your answer can be based on the total spending on the textbook per semester or average spending on the textbook - you decide on the chart you prefer --- All I want for you is to establish a norm (center line and upper/lower control limits based on 6-sigma rule) - 1 point Problem 2. Using the average price spent on Electronic items/Cell phones/laptop/tablet, provided above, as our time series data, ~ a) Using the moving average of two period forecast the spending on this item for Semesters 6 and 8 (0.5 pt) b) Using simple exponential smoothing method and w=0.60, forecast the spending for this item in Semesters 6 and 8 (1 pt)- c) Using double exponential smoothing (Holt's) method and w=0.60, v=0.2, forecast the spending for this item in Semesters 6 and 8 (1.5 pts)~Problem 3. Using the average price spent on Electronic items/Cell phones/laptop/tablet, provided above, compute Autocorrelation of lag 1 and lag 2. (0.5 for each) ~ Problem 4. Two forecasting methods have produced the following forecast for the past five months. ~ Actual Forecast 1 Forecast 2 10 11 8 10 10 114 6 10. a) Compute all three popular measures of forecast accuracy for the Forecast 1.(0.5 pt) b) Compute all three popular measures of forecast accuracy for the Forecast 2.(0.5 pt)- c) Based on the results for MAD (mean absolute deviation) statistics which forecast method do you recommend? (.5 pt)~

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