Mathematics, 20.12.2019 19:31 tishfaco5000
Acoffee shop claims that its fresh-brewed drinks have a mean caffeine content of 80 milligrams per 5 ounces. a city health agency believes that the coffee shop’s fresh- brewed drinks have higher caffeine content. to test this claim the health agency takes a random sample of 100 five-ounce servings and found the average mean caffeine content of the sample was 87 milligrams with standard deviation of 25 milligrams. does this provide enough evidence at the 1% significance level to claim that the coffee shop’s fresh- brewed drinks have higher caffeine content?
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Acoffee shop claims that its fresh-brewed drinks have a mean caffeine content of 80 milligrams per 5...
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