Fit a simple linear regression model to the data, Microeconomics

Assignment Help:

1. Refer to the data in the file "asm2Q1.xls" on the annual number of fatalities (FATALS, y) from gas and dust explosion in coal mines for the years 1915 to 1978 and the number of labour hours (HOURS, x, in millions) of production work.

a) Fit a simple linear regression model to the data and construct a 95% prediction interval for y when x = 60.

b) Use Szroeter's test to investigate the constant variance assumption of the simple linear regression model in a). What conclusion can you draw at 5% level?

c) Suppose instead, a new regression model is fitted using the transformed y value y*=sqrt(y), ie, the model

y* = sqrt(y) = b0 +b1x + e

is fitted. Construct again a 95% prediction interval for y (not y*) when x = 60 based on this transformed model.

d) Use Szroeter's test to investigate the constant variance assumption for the model in c). What conclusion can you draw at 5% level?

e) Compare the two intervals in a) and in c). Which one would you recommend? Explain.


Related Discussions:- Fit a simple linear regression model to the data

Health and life expectancy, Health and Life Expectancy: In addition t...

Health and Life Expectancy: In addition to struggling on low income, many people in the developing nations fight a constant battle against malnutrition, disease and ill healt

Rent, what is modern theory

what is modern theory

Sectoral distribution of targeted increase in gdp, MRP Technique- Sectoral ...

MRP Technique- Sectoral Distribution of Targeted Increase in GDP There are two ways of increasing the GDP: (i) Project and accomplish the growth in various sectors through

Chemical combination, Draw a diagram to show the type of bond between two f...

Draw a diagram to show the type of bond between two flourine atom

Homework, There are six potential customers of computer games, each willing...

There are six potential customers of computer games, each willing to buy only one game Consumer 1 is willing to pay $40, Consumer 2 is willing to pay $35, consumer 3 is willing to

Select demand schedule and a supply schedule for apples, •Create a demand s...

•Create a demand schedule and a supply schedule for your product.. •Using these schedules, draw a demand curve and a supply curve using PowerPoint or Excel. Use these to determine

Costs of education, Costs of Education The resources employed to produ...

Costs of Education The resources employed to produce a good or service measured in monetary terms is known as the ‘cost of the product’. If the measurement is per unit of serv

True or false, economists would predict that if salaries increased for engg...

economists would predict that if salaries increased for engginieers and decreasded for mba braduates that fewer people would go to graduate school in business and more would go in

When tree berson shared , ahmed has 500 dolars.asma has 700 dolars.cismaan...

ahmed has 500 dolars.asma has 700 dolars.cismaan has 800 dolar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd