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find p and z value Marketers believe that 81% of adults in the United States own a car. A car manufacturer believes that number is

find p and z value

Marketers believe that 81% of adults in the United States own a car. A car manufacturer believes that number is actually lower. 170 American adults are surveyed, of which, 145 report having cars. Use a 5% level of significance. 1. State the null and alternative hypothesis. Ho:p> 0.81 Ho p

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