Answer:
Step-by-step explanation:
i need help on this
Add 2/7 to both sides
x = 6/7 + 2/7
simplify 6/7 + 2/7 to 8/7
Answer: x = 8/7 so 8/7 - 2/7 = 6/7 is true.
Answer:
24 boxes
Step-by-step explanation:
The processor knows that the standard deviation of box weight is 0.5 pound
We are supposed to find How many boxes must the processor sample to be 95% confident that the estimate of the population mean is within 0.2 pound
Formula of Error=
Since we are given that The estimate of the population mean is within 0.2 pound
So,
z at 95% confidence level is 1.96
Hence the processor must sample 24 boxes to be 95% confident that the estimate of the population mean is within 0.2 pound
54, i just took 12x4 and 3x2 and added them together
Answer:
I think your right :)
Step-by-step explanation: