There are three hospitals in the Tulsa, Oklahoma, area. The following data show the number of outpatient surgeries performed on Monday

There are three hospitals in the Tulsa, Oklahoma, area. The following data show the number of outpatient surgeries performed on Monday, Tuesday, Wednesday, Thursday, and Friday at each hospital last week. At the 0.05 significance level, can we conclude there is a difference in the mean number of surgeries performed by hospital or by day of the week?

Number of Surgeries Performed

  Day

St. Luke's

St. Vincent

Mercy

  Monday

14

18

24

  Tuesday

20

24

14

  Wednesday

16

22

14

  Thursday

18

20

22

  Friday

20

28

24

 Click here for the Excel Data File

1.

Set up the null hypothesis and the alternative hypothesis.

For Treatment:

Null hypothesis

2.

Alternative hypothesis

3.

For blocks:

Null hypothesis

4.

Alternative hypothesis

5.

State the decision rule for .05 significance level. (Round your answers to 2 decimal places.)

       For Treatment:

  Reject H₀ if F>

       For blocks:

  Reject H₀ if F>

6.

Complete the ANOVA table. (Round SS, MS and F to 2 decimal places.)

  Source

SS

df

MS

F

  Treatments

  Blocks

  Error

  Total

7.

What is your decision regarding the null hypothesis?

The decision for the F value (Treatment) at 0.05 significance is:

8.

The decision for the F value (Block) at 0.05 significance is:

9.

Can we conclude there is a difference in the mean number of surgeries performed by hospital or by day of the week?

There is (Click to select)no differencea difference in the mean number of surgeries performed by hospital or by day of the week.