Answer: .
Step-by-step explanation:
Given : Sample size : n= 64 , the sample is a large sample (n>30), so we can apply z-test.
Sample mean =
Standard deviation :
Level of confidence:
Then, critical z-value =
The confidence interval to estimate the population mean is given by :_
Hence, the 95% confidence interval to estimate the population mean can be computed as .
Let
x-------> the cost of each pepperoni pizza
y-------> the cost of each cheese pizza
z-------> the cost of each Hawaiian pizza
we know that
------> equation A
-----> equation B
-----> equation C
Substitute equation B and equation C in equation A
solve for x
therefore
<u>the answer is</u>
2m - [n - (m - 2n)]
2m - n + (m - 2n)
2m - n + m - 2n
2m + m - n - 2n
3m - 3n
Answer is D.
This is honestly simple but we all need help! The answer is 55,053. Hope this helps! =3
Answer:
you didn't put a picture
Step-by-step explanation:
lol