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Answer: B) 18.2 inches
Step-by-step explanation:
We know that the circumference of a circle is given by :-
Given : Diameter of a circle = 5.8 inches
Then, the circumference of the circle will be :-
Hence, the circumference of the circle = 18.2 inches
Answer:
0.288 < p < 0.338
Step-by-step explanation:
We have 2331 adults polled and 730 said they believe in UFOs. We are to construct a 99% confidence interval for the population proportion. We are told to round to 3 decimal places as needed.
We need to find p-hat and q-hat
p-hat = 730/2331 = 0.313
q-hat = 1 - p-hat = 1 - 0.313 = 0.687
Since the sample size is greater than 30, we use a z-value for 99% confidence, which is 2.575
See attached photo for the construction of the confidence interval
