# HW #9.54 - PowerPoint PPT Presentation

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HW #9.54

## HW #9.54

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1. HW #9.54 Page 295 Cost of Text Books

2. 07.52, p302, Cost of Text Books 1. The population mean cost of text books is no more than \$300.00. The population mean cost of text books is more than \$300.00. 2. 3. 4. 5.

3. 6. df = 100 – 1 = 99

4. 7. 8. 9. 10. There is enough evidence to conclude that the population mean cost of text books is more than \$300.00.

5. b. df = 100 – 1 = 99

6. b. continued 7. 8. 9. 10. There is enough evidence to conclude that the population mean cost of text books is more than \$300.00.

7. c. 1. The population mean cost of text books is no more than \$300.00. The population mean cost of text books is more than \$300.00. 2. 3. 4. 5.

8. C continued. df = 100 – 1 = 99

9. c. continued 7. 8. 9. 10. There is enough evidence to conclude that the population mean cost of text books is no more than \$300.00. OR There is not enough evidence to conclude that the average cost of textbooks per semester is more than \$300.