U.S. News and World Report reported that American spend, on average, 6 minutes a
ID: 2907411 • Letter: U
Question
U.S. News and World Report reported that American spend, on average, 6 minutes a day looking for keys in the morning.You gather information from a sample of CU students and calculate a confidence interval for the true average amount of time spent looking for keys in the morning.Your 95% confidence interval was calculated to be 4.2 minutes to 6.3 minutes.Indicate which of the following statements are correct.
There is 95% probability that the true average is between 4.2 and 6.3 minutes.
The true average is between 4.2 and 6.3 minutes with 95% confidence.
95% of all CU students will spend between 4.2 and 6.3 minutes looking for their keys.
A new confidence interval has a 95% chance of being between 4.2 and 6.3 minutes.
We are 95% confident the sample average is between 4.2 and 6.3 minutes.
There is 95% probability that the true average is between 4.2 and 6.3 minutes.
The true average is between 4.2 and 6.3 minutes with 95% confidence.
95% of all CU students will spend between 4.2 and 6.3 minutes looking for their keys.
A new confidence interval has a 95% chance of being between 4.2 and 6.3 minutes.
We are 95% confident the sample average is between 4.2 and 6.3 minutes.
Explanation / Answer
Solution, Answer = Correct option is B. The true average is between 4.2 and 6.3 minutes with 95% confidence.
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