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Mathematics, 23.03.2020 19:57, anhthule1011
The owners of Hamburger Hop are concerned that many of their customers are starting to purchase their burgers from Cheesy Chops because of its new burger, which has fewer grams of fat than Hamburger Hop. A random sample of 120 single burgers from Hamburger Hop found a mean of 32 grams of fat and a standard deviation of 2.4 grams. A random sample of 120 single burgers from Cheesy Chops found a mean of 29 grams of fat and a standard deviation of 1.8 grams. Which of the following formulas gives a 98% confidence interval for the difference in mean grams of fat between a Hamburger Hop single burger and a Cheesy Chop single burger?
A3 plus or minus 2.36 times square root of 2.4 over 120 plus 1.8 over 120
B 3 plus or minus 2.36 times square root of 2.4 squared over 120 plus 1.8 squared over 120
C 3 plus or minus 2.36 times square root of 2.4 squared over 119 plus 1.8 squared over 119
D 3 plus or minus 2.054 times square root of 2.4 squared over 119 plus 1.8 squared over 119
E3 plus or minus 2.054 times square root of 2.4 squared over 120 plus 1.8 squared over 120
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