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Mathematics, 07.12.2019 11:31, rachel2005smith
Mcdonald’s advertises that its ice cream cones have a mean weight of 3.2 ounces. a human worker starts and stops the machine that dispense the ice cream, so we might expect to see some variation in the amount of ice cream. a researcher took a random sample of 31 cones and the sample yielded an average of 3.62 ounces with a sample standard deviation of 0.67 ounces. do these observation support the claim h o? or is the average cone weight differs from 3.2 ounces? use alpha 5%.
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Mcdonald’s advertises that its ice cream cones have a mean weight of 3.2 ounces. a human worker star...
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