Question

# Use the following information to answer questions 9-15. The length of time spent in the examination...

1. Use the following information to answer questions 9-15.

The length of time spent in the examination room is recorded for each patient seen by each physician at an orthopedic clinic.

Does the data provide a significance difference in mean times?

 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 X.1=198 X. 2=205 X.3=218 X.4=224

The null hypothesis for this ANOVA problem is:

 H0: μ1=μ2 H0: μ1=μ2=μ3 H0: μ1=μ2=μ3=μ4 H0: μ1=μ2=μ3=μ4=μ5

10 points

QUESTION 10

1. The total sum of squares, (SST) equals:

 450.55 698.11 212.35 485.76

10 points

QUESTION 11

1. The sum of squares between treatments (SSTR) equals:

 450.55 698.11 212.35 d) 485.76

10 points

QUESTION 12

1. The test statistic to test the null hypothesis equals:

 0.59 1.06 3.5 19.231

10 points

QUESTION 13

1. The null hypothesis is to be tested at the 5% level of significance. The critical value from the table is:

 2.54 3.72 3.01 2.78

The statistical software output for this problem is :

H0: μ1234

SST = 698.11

SSTR = 212.35

test statistic = 3.50

Critical value = 3.01

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