A sample of 33 airline passengers found that the average check-in time is XXXXXXXXXXBased on long-term data, the population standard deviation is known to be 0.48. Find a 95% confidence interval for...

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A sample of 33 airline passengers found that the average check-in time is 2.167. Based on long-term data, the population standard deviation is known to be 0.48. Find a 95% confidence interval for the mean check-in time. Use the appropriate formula and verify your result using the Confidence Intervals workbook.

Answered Same DayDec 25, 2021

Answer To: A sample of 33 airline passengers found that the average check-in time is XXXXXXXXXXBased on...

Robert answered on Dec 25 2021

122 Votes

Here we have
Go to Add-Ins, then MegaStat, then Confidence Intervals/ Sample size...Following is the screen shot:
A pop up window will open. Enter the information. Following is the screen shot:
Click ok. Following is the output:
Confidence interval - mean
95% confidence level
2.167 mean
0.48...

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A sample of 33 airline passengers found that the average check-in time is XXXXXXXXXXBased on long-term data, the population standard deviation is known to be 0.48. Find a 95% confidence interval for...

Answer To: A sample of 33 airline passengers found that the average check-in time is XXXXXXXXXXBased on...

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