We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

E-Text 12.47 Essay Sample

essay
The whole doc is available only for registered users OPEN DOC

A limited time offer!

Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed

Order Now

E-Text 12.47 Essay Sample

Regression analysis of free throws by 29 NBA teams during the 2002-2003 season revealed the fitted regression Y=55.2 + .73x (r2=.874, Syx=53.2) Where Y=total free throws made and X=total free throws attempted. The observed range of X was from 1,620 (New York kicks) to 2,382 (golden state warriors). (a) Find the expected number of free throws made for a team that shoots 2,000 free throws. (b) Do you think that the intercept is meaningful? (Hint: make a scatter plot and let excel fit the line. (c) Use the quick rule to make a 95 percent prediction interval for Y when X=2,000 FREE THROWS

(a) Find the expected number of free throws made for a team that shoots 2,000 free throws.

            Y = 55.2 +0 .73x = 55.2 + 0.73*2000 = 1515.2 ≈ 1515

The expected number of free throws made for a team that shoots 2,000 free throws is 1515.

(b) Do you think that the intercept is meaningful? (Hint: make a scatter plot and let excel fit the line.

No, the intercept is not meaningful. The reason for this is that the intercept value is 55.2 free throws made for no free throws attempted.

(c) Use the quick rule to make a 95 percent prediction interval for Y when X=2,000

 

Quick Rules for Prediction Intervals

 

=      (putting t = 2 for quick 95 percent prediction interval)

== (1894, 2106)

We can write a custom essay

According to Your Specific Requirements

Order an essay
Get Access To The Full Essay
icon
300+
Materials Daily
icon
100,000+ Subjects
2000+ Topics
icon
Free Plagiarism
Checker
icon
All Materials
are Cataloged Well

Sorry, but copying text is forbidden on this website. If you need this or any other sample, we can send it to you via email.

By clicking "SEND", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
Sorry, but only registered users have full access

How about getting this access
immediately?

Become a member

Your Answer Is Very Helpful For Us
Thank You A Lot!

logo

Emma Taylor

online

Hi there!
Would you like to get such a paper?
How about getting a customized one?

Can't find What you were Looking for?

Get access to our huge, continuously updated knowledge base

The next update will be in:
14 : 59 : 59
Become a Member