HW #9.54

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## HW #9.54

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**HW #9.54**Page 295 Cost of Text Books**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.**6.**df = 100 – 1 = 99**7.**8. 9. 10. There is enough evidence to conclude that the population mean cost of text books is more than $300.00.**b.**df = 100 – 1 = 99**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.**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.**C continued.**df = 100 – 1 = 99**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.