A carnival operator randomly selected 36 rides at a carnival. A 95% confidence i
ID: 3223273 • Letter: A
Question
A carnival operator randomly selected 36 rides at a carnival. A 95% confidence interval was performed to determine the average number of seconds per ride with the following results. What conclusion can be drawn from these results?
Variable----------N-----------Mean---------STDEV-------SE Mean------95.0% CI
Carnival---------36----------293.17--------10.18----------1.70-----------(289.72, 296.61)
answers
The carnival operator is 95% confident that between 2.89% and 2.96 % of the rides last 5
minutes.
The carnival operator is 95% confident that the mean number of seconds per ride for the sample of rides is between 289.72 and 296.61.
The carnival operator is 95% confident that the population mean is 293.17 seconds.
The carnival operator is 95% confident that the mean number of seconds per ride for the population of all rides is between 289.72 and 296.61.
The carnival operator is 95% confident that between 2.89% and 2.96 % of the rides last 5
minutes.
The carnival operator is 95% confident that the mean number of seconds per ride for the sample of rides is between 289.72 and 296.61.
The carnival operator is 95% confident that the population mean is 293.17 seconds.
The carnival operator is 95% confident that the mean number of seconds per ride for the population of all rides is between 289.72 and 296.61.
Explanation / Answer
The confidence interval gives us the interpretation about the population parameter of interest. Here, the objective is to determine the average number of seconds per ride for the population of rides. As evident from question statement,- 95% confidence interval was performed to determine the average number of seconds per ride.
Hence, the conclusion is - The carnival operator is 95% confident that the mean number of seconds per ride for the population of all rides is between 289.72 and 296.61.
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