CPM Homework Help : CCA Problem 10-113

The owner of Taco Shack saw reviews online complaining that there was not enough cheese on his tacos. Without identifying himself, he randomly purchased $251$ tacos from his own stores and from his competitor. He weighed the amount of cheese on each taco. His results are below:

NUMBER OF TACOS	Taco Shack	competitor
$\boldsymbol{<15}$ grams cheese	$15$	$11$
between $\boldsymbol{15}$ and $\boldsymbol{25}$ g cheese	$83$	$68$
$\boldsymbol{>25}$ grams cheese	$41$	$33$
TOTAL	$139$	$112$

Is there an association between the amount of cheese and where a taco was purchased? Should the owner of Taco Shack adjust the amount of cheese based on what his competitor is doing?

Hint:

Make a relative frequency table to help you answer this question.

More Help:

Here is the relative frequency table for Taco Shack and its competitor.

NUMBER OF TACOS	Taco Shack	Competitor
$\boldsymbol{<15}$ grams cheese	$11\%$	$10\%$
between $\boldsymbol{15}$ and $\boldsymbol{25}$ g cheese	$60\%$	$61\%$
$\boldsymbol{>25}$ grams cheese	$29\%$	$29\%$