othesis Testing
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Question 12, 8.2.25 >
Construct a 95% confidence interval for p₁₂ with the sample statistics for mean calorie
content of two bakeries' specialty pies and confidence interval construction formula below.
Assume the populations are approximately normal with equal variances.
HW Score: 91.67%, 11 of 12 points
Points: 0 of 1
Bakery A
= 1815 cal
Bakery B
X2 = 1619 cal
S₁ = 168 cal
n₁ = 12
$2 = 186 cal
n₂ = 8
(-)-48
+
+
п
Confidence interval when
variances are equal
(n-1) s² + (n-1) s
where =
and d.f. =n₁+n2-2
Enter the endpoints of the interval.
n example
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