Write and solve an equation to find the value of X
2 answers:
You might be interested in
Answer:
The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.
Step-by-step explanation:
Margin of error
In which is the standard deviation and n is the size of the sample.
Standard deviation of 1.3
This means that
She surveys 124 families
This means that
Margin of error and meaning:
The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.