Answer:
Step-by-step explanation:
Percentage of A
34/40 x 100 = 85%
Percentage of B
54/40 x 100 = 135%
Ans: A) 85% B) 135%
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:






Answer:
True
Step-by-step explanation:
Step-by-step explanation:
please mark me as brainlest
Answer:
I tried looking it up, and i found 15 square units. sorry if its wrong :(
Step-by-step explanation: