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(Solution Download) 4. Systolic Blood Pressure in Different Age Groups A random sample of 40 women is partitioned...

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4.    Systolic Blood Pressure in Different Age Groups A random sample of 40 women is partitioned into three categories with ages of below 20, 20 through 40, and over 40. The systolic blood pressure levels are obtained from Data Set 1 in Appendix B. The analysis of variance results obtained from Minitab are shown below.

a.   What is the null hypothesis?

b.   What is the alternative hypothesis?

c.    Identify the value of the test statistic.

d.   Identify the P-value.

e.    Is there sufficient evidence to support the claim that women in the different age categories have different mean blood pressure levels?



In Exercises 5 and 6, use the listed sample data from car crash experiments conducted by the National Transportation Safety Administration. New cars were purchased and crashed into a fixed barrier at 35 mi>h, and the listed measurements were recorded for the dummy in the driver?s seat. The subcompact cars are the Ford Escort, Honda Civic, Hyundai Accent, Nissan Sentra, and Saturn SL4. The compact cars are Chevrolet Cava- lier, Dodge Neon, Mazda 626 DX, Pontiac Sunfire, and Subaru Legacy. The midsize cars are Chevrolet Camaro, Dodge Intrepid, Ford Mustang, Honda Accord, and Volvo S70.

The full-size cars are Audi A8, Cadillac Deville, Ford Crown Victoria, Oldsmobile Au- rora, and Pontiac Bonneville.



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