A watch manufacturer believes that 60% of men over age 50 wear
watches. So, the manufacturer...
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A watch manufacturer believes that 60% of men over age 50 wearwatches. So, the manufacturer took a simple random sample of 275men over age 50 and 170 of those men wore watches. Test the watchmanufacturer's claim at α = .05.
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Solution Let X number of men over age 50 who wear watches in asample of 275 men Then X Bn p where n sample size and p the proportion of men over age 50 who wear watches in the population Claim 60 of men over age 50
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