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Marrrta [24]
3 years ago
15

A simple random sample of 60 items resulted in a sample mean of 76. The population standard deviation is 14.

Business
1 answer:
posledela3 years ago
5 0

Answer: (72.383,79.617)

Round to: (72.4,79.6)

Explanation:

Go to stat, calc, 8-Tinterval, and then just plug in the given information

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Answer:

a.                                                 2005     2006      2007         2008

Holding period return                10%        -7.27%    5.88%        -100

b. Geometric  average return = -100

c. Dollar weighted return= -2.70%

Explanation:

Holding period return = \frac{income+(end period value - original value)}{original value}

                                    =\frac{o + ( 55 - 50)}{50} * 100

                                    = 10%

geometric average return = (( 1+r)*(1+r2)*(1+r3)*(1+r4))^1/4   - 1

dollar weighted return = (initial investment + additions) /  (initial investment -withdrawals)

                                      = ( 5000+ 2750)/(5000-3825-4050)

                                      = 7750/-2875

                                      =

                                           

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