Mathematics, 05.02.2020 13:51 stupidsmoke4272
Spaulding is the leading maker for basketballs in the us. spaulding prides itself on the quality that its basketballs have the right amount of bounce when it is taken out of the packaging. they want their product to be ready for use upon opening. the air pressure of a particular ball has a target value of 7.7 psi. suppose the basketballs have a normal distribution with a standard deviation of 0.15 psi. when a shipment of basketballs arrive, the consumer takes a sample of 22 from the shipment and measures their psi to see if it meets the target value, and finds the mean to be 7.4 psi. perform this hypothesis test at the 5% significance level using the critical value approach.
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