nicole is taking a train yo Washington DC.The train travels 234 miles in 4 1/2 hours.Express this relationship as a unit rate
1 answer:
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Answer:
The 99% confidence interval for the proportion of donors who donated is (0.0547, 0.0585).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
99% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:
The upper limit of this interval is:
The 99% confidence interval for the proportion of donors who donated is (0.0547, 0.0585).
Answer: The exact distance is units
The approximate distance is roughly 8.5440037 units
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Explanation:
Use the distance formula
As an alternative, you can use the pythagorean theorem.