Page 17 - FINAL CFA SLIDES DECEMBER 2018 DAY 4
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Session Unit 2:
8. Statistical Concepts & Market Returns (B/C/A/C/C/B)
A. PV is known/ n ≥ 30, the CI = x ± zα/2(σ/√n); zα/2 = z0.025 = 1.96. So, CL is 75 ± 1.96(20/10) = 75 ± 3.92 =
71.08 to 78.92.
C. Suppose you have a population of 10,000 employees. If you take 100
samples of 50 employees each, the distribution of the 100 sample means is
the sampling distribution.
B. Cross-sectional data is a set of data that are all collected as of the same point in time.
