Answer:21
Step-by-step explanation:
32 is the answer and it is adding 5 everytime
Answer:
D
Step-by-step explanation:
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:





