• 1
Votes
name

A PHP Error was encountered

Severity: Warning

Message: Undefined array key "userid"

Filename: views/question.php

Line Number: 212

Backtrace:

File: /home/statpmkj/public_html/application/views/question.php
Line: 212
Function: _error_handler

File: /home/statpmkj/public_html/application/controllers/Questions.php
Line: 416
Function: view

File: /home/statpmkj/public_html/index.php
Line: 315
Function: require_once


For a sample of eight​ bears, researchers measured the distances around the​ bears' chests and weighed the bears. Minitab was used to find that the value of the linear correlation coefficient is r = 0.982. Using alpha = 0.05, determine if there is a linear correlation between chest size and weight. What proportion of the variation in weight can be explained by the linear relationship between weight and chest​ size?

a.  To determine if there is a linear​ correlation, test the claim that the correlation coefficient is different from 0. The hypotheses for this test are shown below.

b. The proportion of the variation in weight explained by the linear relationship between chest size and weight is defined to be r^2 where r is the linear correlation coefficient.