Question

In: Math

1) Volatility (variation) of investment rates is an important consideration for investors. The following data represent...

1) Volatility (variation) of investment rates is an important consideration for investors. The following data represent the rate of return (%) for some mutual funds for the past 12 years, (like Sullivan, 5e, p 454, #16c). Determine the 95% confidence interval for the population standard deviation. 2 1 / 2 2 2 / 2 2 ( 1) / ( 1) /         n s n s (d.f. = n-1) 12.8 15.9 10.0 12.4 14.3 6.6 9.6 12.4 10.3 8.7 14.9 6.7

A) 2.2 < σ < 5.2

B) 2.3 < σ < 4.9

C) 3.2 < σ < 5. 6

D) 2.0 < σ < 5.9

Solutions

Expert Solution

Hence,

Correct option : A) 2.2 < < 5.2


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