Question Details

(Solution) - The model relating the mean DDT level E y of contaminated

Brief item decscription

Solution download


Item details:

The model relating the mean DDT level E(y) of contaminated fish to x1 = miles captured upstream, x2 = length, and x3 = weight. Now consider a model for E(y) as a function of both weight and species (channel catfish, largemouth bass, and smallmouth buffalo).
a. Set up the appropriate dummy variables for species.
b. Write the equation of a model that proposes parallel straight-line relationships between mean DDT level E(y) and weight, one line for each species.
c. Write the equation of a model that proposes nonparallel straight-line relationships between mean DDT level E(y) and weight, one line for each species.
d. Fit the model, part b, to the data saved in the file. Give the least squares prediction equation.
e. Refer to part d. Interpret the value of the least squares estimate of the beta coefficient multiplied by weight.
f. Fit the model, part c, to the data saved in the file. Give the least squares prediction equation.
g. Refer to part f. Find the estimated slope of the line relating DDT level (y) to weight for the channel catfish species.
For Information: Refer to Exercise 12.18

 







About this question:
STATUS
Answered
QUALITY
Approved
ANSWER RATING

This question was answered on: Jul 11, 2017

PRICE: $15

Solution~000524031756.zip (18.37 KB)

Buy this answer for only: $15

Pay using PayPal (No PayPal account Required) or your credit card. All your purchases are securely protected by PayPal.
SiteLock

Need a similar solution fast, written anew from scratch? Place your own custom order

We have top-notch tutors who can help you with your essay at a reasonable cost and then you can simply use that essay as a template to build your own arguments. This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student. New solution orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

Order Now