C= 3.14d
C= 3.14 x 9.06
C= 28.45
Answer:

Step-by-step explanation:
Given
<u>Brand A</u> <u>Brand B</u>



Required
Determine the test statistic (t)
This is calculated as:

Calculate s using:

The equation becomes:




So:






They are both equal to below zero
7/15 or o.46 that is the answer to this question
Answer:
Step-by-step explanation:
i am on the same one