Statistics question

Question

A geologist collects hand specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of association between color and texture for these limestones? Explain your answer.

Color

Texture Light Medium Dark

Fine 4 20 8

Medium 5 23 12

Coarse 21 23 4

Answer 1

Major,

 

You have to put the whole problem in here for us to help you. I did some digging and found the original problem which specified using the Chi squared method and to evaluate at 1% level. It also provided expected values which are required for statistics.

 

Cutting to the case, I also found the answer. Look at #4.

http://math.arizona.edu/~dhh/ReviewExam3_Sols.pdf