<PRE><B>Question 189804</B>
One particular morning, the length of time spent in the examination rooms is recorded for each patient seen by each physician at an orthopedic clinic. Does the data prove a significant difference in mean times? Physicians
Time in Examination Rooms (minutes)
Physician 1 Physician 2 Physician 3 Physician 4
34 33 17 28
25 35 30 33
27 31 30 31
31 31 26 27
26 42 32 32
34 33 28 33
21 26 40
29 
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Ho: The means are all equal.
Ha: At least one of the means is not equal to the others
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Enter the data into three lists.
Run ANOVA against the three lists to get
a test statistic and p-value.
If the p-value is less than 5%, reject Ho.
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Cheers,
Stan H.</PRE>