The Table Below Shows the Weights of 9 Subjects,in Kg,before

question 6

Multiple Choice

The table below shows the weights of 9 subjects,in kg,before and after they followed a particular diet for two months.
Construct a 95% confidence interval for the mean difference of the "before" minus "after" weights if if
(before-after) = 4.4333 and
= 4.2146

• A)(2.8,7.0)
• B)(-7.0,6.8)
• C)(2.4,7.4)
• D)(1.2,7.7)
• E)(1.5,6.7)

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