Answer:
Step-by-step explanation:
Itś 5n²
Answer:
D
Step-by-step explanation:
Need more detail to sovle
Answer:
And the confidence interval would be:

Step-by-step explanation:
Information given:
represent the sample size
represent the estimated proportion
The confidence interval would be given by this formula
For the 98% confidence interval the value of
and
, with that value we can find the quantile required for the interval in the normal standard distribution.
And replacing into the confidence interval formula we got:
And the confidence interval would be:

Answer: 150
Step-by-step explanation: a scale of 150 because 150 times 8 is 1,200.