Question

An investigator is studying the association between dietary and exercise habits in a group of 300 students. She summarizes the findings as follows:

		The correct number of degrees of freedom is 6
		The correct number of degrees of freedom is 8
		The chi-square is smaller than expected if there is no association
		The data are inconsistent with the hypothesis of no association
		The observed numbers tend to agree with those expected

Answer 1

ANSWER::

here degree of freedom =(row-1)*(column-1)=(3-1)*(3-1)=4

from excel: p value for above test statistics =chidist(18.37,4) =0.0010

since p value is significantly low:

Correct option from above is:

Option:: (d) is correct...................

NOTE:: I HOPE THIS ANSWER IS HELPFULL TO YOU......**PLEASE SUPPORT ME WITH YOUR RATING......

**PLEASE GIVE ME "LIKE".....ITS VERY IMPORTANT  FOR,ME......PLEASE SUPPORT ME .......THANK YOU