346 centenwin yes MATH220 Elementary Statistics MAR 17 Rebecca Swyers 4/23 17 75

Question

346 centenwin yes MATH220 Elementary Statistics MAR 17 Rebecca Swyers 4/23 17 756 est Chapter 8 Test Time Remaining: 00:53:40 Submit is Question: 1 pt 3 of 4 (2 complete) v This Test: 4 pts pos A food manufacturer claims that eating its new cereal as part of a daily diet lowers total blood cholesterol levels. The table shows the total blood cholesterol levels (in milligrams per deciliter ot blood) of seven patients before eating the cereal and after one year of eating the cereal as part Use technology to testthe mean difference. Assume the samples are random and dependent, and the population is normaly At a 0.05, can you conclude that the blood cholesterol levels?

Explanation / Answer

t-statistic formula is given as

t=(D/n)/sqrt{(D^2-(D)^2/n/n-1*n}

=(19/7)/{(135-361/7)}/7*7-1

solving we get

t-statistic=1.366

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