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A company makes cream (for face and hand) bottles that contain a mean amount of therapy...

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Basic Math

A company makes cream (for face and hand) bottles that contain amean amount of therapy cream of 650 ml per bottle as indicated onthe label. To monitor its quality, the company randomly selected100 bottles from the production line and the sample mean amount ofcream was 640 ml per bottle. Assume that the amount of creamfollows a normal distribution with a standard deviation of 4 ml .Is there evidence at 0.01 level of significance to conclude thatthe population mean amount of cream is not 650 ml per bottle? Usethe confidence interval approach

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4.4 Ratings (904 Votes)
GIVENSample size Sample mean amount of creamSample standard deviation HYPOTHESISThe hypothesis is given byThat is the population mean amount of cream is not significantlydifferent from 650 ml per bottleThat is the    See Answer
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