(Please provide a breakdown and describe/show step by step details on how you arrived the answers so I can learn - thanks)

3

QUESTION: What is the margin of error for the population mean at 90% confidence level for the information in DATA below (Wait Time in minutes)?.

(**Important Note: The answer must be very accurate so please provide steps using EXCEL with the cell addresses instead of typing intermediate results, and only round the final result using the Number options***)

DATA:

Wait Time (minutes)

2.1

8.0

4.6

2.5

3.5

4.3

3.9

5.0

6.5

3.4

5.6

6.6

4.3

4.9

9.3

5.5

4.3

11.9

5.2

4.8

5.2

7.8

8.0

4.6

4.0

5.9

8.7

3.1

4.9

11.6