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please solve 4.7 Business 210 Chapter 10 Ford Truck 90% The FORD MOTOR COMPANY advertises, Ninety percent of our trucks are still in service after

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4.7 Business 210 Chapter 10 Ford Truck 90% The FORD MOTOR COMPANY advertises, "Ninety percent of our trucks are still in service after 10 years". Fords are reliable. . . You and our Chevy loving friends doubt this claim, feeling that fewer than 90% are in service after 10 years. You obtain a random sample of 150 Ford trucks and find that 132 are still in service after 10 years. Test you and our friend's belief at the 5% level of significance

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