The Consumer Price Index for Industrial Workers (CPI-IW) is published by: MCQ with Answer and Explanation
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Question #1
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In a 2×2 attribute table, if (A)=400, (B)=500, N=1000, and observed (AB)=250, the expected (AB) under independence is:
Correct Answer: Option C
Explanation:
Expected (AB) = (A)×(B)/N = 400×500/1000 = 200,000/1000 = 200. Observed 250 > 200 suggests positive association between attributes A and B.
Expected (AB) = (A)×(B)/N = 400×500/1000 = 200,000/1000 = 200. Observed 250 > 200 suggests positive association between attributes A and B.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The weighted harmonic mean is used to average:
Correct Answer: Option C
Explanation:
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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A fixed base index number series is one where:
Correct Answer: Option B
Explanation:
In fixed base method, a particular year is chosen as base and all other years are compared to it.
In fixed base method, a particular year is chosen as base and all other years are compared to it.
This question belongs to:
Accountancy and Statistics
Statistics
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