× - BUSN 5760 OC SU 2017 Applied Business Statistics Dwayne Middleton | 7/21/17
ID: 3291093 • Letter: #
Question
× - BUSN 5760 OC SU 2017 Applied Business Statistics Dwayne Middleton | 7/21/17 3:43 PM Test: Week 4 Midterm Exam Submit Test This Question: 2 pts 5f 25 (15 complete) | This Test: 45 pts possible 6 60 and that the standard deviation, s 50 Complete on der a p pilation of 1024 mutual funds that primaril invest in lar e companies You have de emined tha l the mean one year to a percentage return a hie ed by al the funds (a) through (c) a. Accodingto the empirical rule, what percentage of lhesc funds is cxpected to be wlhin 13 slandard devilions of the mearn? b. Aocording to the Chebyshev rule, what percentage of these funds are expected to be within standard deviations of the mean? % (Round to tw deninnal places as needed ) c According to the Chebyshev rule, at le st 96% ot these tunds are expected to have Behween an Round lo lwo decimal plaves as rieeded.) ding to the Chebyshev rn ne-year total retums between what two amunts? Er Enter your answer in each of the answer boxes.Explanation / Answer
) The ehjmpirical rule states that pproximately 99.7% can be found ±3 standard deviations from the mean.
so it is 99.7%
b) chebyshev's rule states that 1/n^2 of the distribution can be found outside of n standard deviations from the mean
given mean meant ±6
so 1- (1/n2)=1-1/36 = 35/36 =0.9722 = 97.2%
c)
STANDARD DEVIATION: = 0.50
MEAN: = 6.60
[6.60 -1.96*0.50,6.60+1.960.50
6.60-0.98,,6.60+0.98
[5.62,7.58]
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