Question: Construct a 95% confidence interval for 12 with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence

Construct a 95% confidence interval for 12 with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances.

Stats

x1=148mg,s1=3.76mg,n1=15

x2=79mg,s2=2.03mg,n2=20

Confidence intervalwhen variancesare not equal

x1x2tc

s21n1+s22n2<12

s21n1+s22n2

d.f. is the smaller of n11 or n21

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