a. Determine the point estimate for y if xp = 50 is used.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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
Transcribed Image Text:The summary statistics
for a regression
analysis are shown to
the right. Complete
parts a through d.
Use a 95% confidence
level and xp = 50 where
needed.
y = 220 + 140x
SSE = 25.24
SSX = Sum of squares X=(x-x)² = 99,632
n = 17
X = 55.0
a. Determine the point estimate for y if xp = 50 is used.
y = (Simplify your answer.)
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
Transcribed Image Text:The summary statistics
for a regression
analysis are shown to
the right. Complete
parts a through d.
Use a 95% confidence
level and x₂ = 50 where
needed.
y = 220 + 140x
SSE = 25.24
SSX = Sum of squares X=(x-x)² = 99,632
n = 17
x = 55.0
a. Determine the point estimate for y if xp = 50 is used.
= 7220 (Simplify your answer.)
b. Provide a 95% confidence interval estimate for the average y, given
Xp = 50.
The 95% confidence interval estimate is ..
(Round to two decimal places as needed.)
Solution
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