Math Problem Statement
I forbindelse med en lineær regression på et datasæt med sammenhørende værdier for to variable x og y er et 95% konfidensinterval for hældningen a bestemt til [— 0,12; 0,20]. a) Afgør, om der med god tilnærmelse er en lineær sammenhæng mellem x og y ud fra 95% konfidensintervallet.
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Regression
Confidence Interval
Slope
Formulas
Confidence interval for slope: CI = [a - ME, a + ME], where ME is the margin of error
Theorems
Confidence Interval Theorem
Null Hypothesis (H₀: slope = 0)
Suitable Grade Level
University Level
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