QUESTION 1

1.Test the following data for a uniform pattern:

Seven Seas, Inc. sells sailing yachts.They assume that four models have a uniform pattern of sales.Test at significance 0.05.

Pirates Revenge

15

Jolly Roger

11

Bluebeards Treasure

10

Ahab's Quest

12

The calculated Chi Square value is ;

1.

5.85

2.

1.17

3.

11.7

20 points

QUESTION 2

1.Test the following data for a uniform pattern:

Seven Seas, Inc. sells sailing yachts.They assume that four models have a uniform pattern of sales.Test at significance 0.05.

Pirates Revenge

15

Jolly Roger

11

Bluebeards Treasure

10

Ahab's Quest

12

The test statistic for comparison is:

1.

9.55

2.

9.488

3.

7.81

20 points

QUESTION 3

1.Emergency rooms have reason to suspect that visits increase on the weekends.A recent report indicates that Monday through Thursday represent 10% per day of the weekly total visits while Friday accounts for 15%, Saturday 25% and Sunday 20%.If your ER has the following pattern, Monday, 120, Tuesday, 130, Wednesday 110, Thursday 95, Friday 160, Saturday 280 and Sunday 105.

Does your facility have the same pattern as the recent report at the 10% level?

1.

No

2.

Yes

20 points

QUESTION 4

1.A sample of n = 17 produces a sample variance of 101.

At the 10% level, can you conclude population variance = 97?

1.

No

2.

Yes

20 points

QUESTION 5

1.A sample of n = 29 reports a variance of 22.7.

At the 10 % level does this indicate apopulation variance is less than37.2?

1.

False

2.

True