题目
ERMCPS5350_005_2025_3 - INTRO TO QUANTITATIVE RISK MANAGEMENT 8. Quiz for Class 8
匹配题
Use the following formula choices to match them with correct statistics: A) 𝑋 − 𝜇 𝜎 B) 𝑋 1 ¯ − 𝑋 2 ¯ 𝑠 1 2 𝑛 1 + 𝑠 2 2 𝑛 2 C) 𝑠 1 2 𝑠 2 2 D) ( 𝑛 − 1 ) 𝑠 2 𝜎 2 1: F-statistic 2: Chi-squared statistic 3: z-score for a single value 4: t-statistic for two sample means
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标准答案
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思路分析
We are given four formula choices A–D and four statistical descriptors to match them with: 1) F-statistic, 2) Chi-squared statistic, 3) z-score for a single value, 4) t-statistic for two sample means. We'll examine each option in turn and then assign the correct descriptor.
Option A: X − μ / σ
This expression is the standard z-score for a single observation relative to the population mean and known population standard deviation. It directly standardizes ......Login to view full explanation登录即可查看完整答案
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