Statistics questions In a Doctor’s office, the average wait time before a patient sees the doctor is...

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In a Doctor’s office, the average wait time before apatient sees the doctor is normally distributed with mean20minutes. Because of some actions taken at the office, thestandard deviation has now reduced by 1 minute so, the standarddeviation is now 2
7. Approximately 95% of the patients will now see a doctorbetween ___ and _minutes
8. How unusual it is now to wait to be seen by the doctor for30mins or more? _% of patients wait beyond 30mins to be seenby a doctor.
9. 5% of the patients will now wait beyondminutes
10. 10% of the (lucky!) patients will now be seen faster thanhow minutes
11. ___% of the patients wait more than 20mins to be seen bythe doctor

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7 20 2 005From Table critical values of Z 19695 Confidence Interval20 196 X 2 20 392 1608 2392SoAnswer isApproximately 95 of the patients will now see a doctor See Answer

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