Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Hypothesis Testing
Standard Deviation
Left-Tailed Test
Formulas
Chi-Square Test for Standard Deviation: χ² = (n - 1) * s² / σ²
Critical Value: Based on χ² distribution table with α = 0.05 and degrees of freedom (df) = n - 1
Theorems
Chi-Square Distribution
Suitable Grade Level
Undergraduate Level - Statistics
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