If the observations xi are independent random variables with variance 2 then according to the EWMA charts, the variance of zi will be ________________

Question

If the observations xi are independent random variables with variance  2 then according to the EWMA charts, the variance of zi will be ________________

TuteeHUB · Accepted Answer

(  sigma_{zi}^2 =   sigma^2 (  frac{ }{2+ })[1-(1- )^{2i}]  )

TuteeHUB · Answer

(  sigma_{zi}^2 =   sigma^2 (  frac{ }{2- })[1+(1+ )^{2i}]  )

TuteeHUB · Answer

(  sigma_{zi}^2 =   sigma^2 (  frac{ }{2- })[1+(1- )^{2i}]  )

TuteeHUB · Answer

(  sigma_{zi}^2 =   sigma^2 (  frac{ }{2- })[1-(1- )^{2i}]  )

TuteeHUB · Answer

(  sigma_{zi}^2 =   sigma^2 (  frac{ }{2+ })[1-(1- )^{2i}]  )

1.	If the observations x_i are independent random variables with variance ² then according to the EWMA charts, the variance of z_i will be ________________
A.	( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1+ )^{2i}] )
B.	( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1- )^{2i}] )
C.	( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1-(1- )^{2i}] )
D.	( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] )
Answer» D. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] )

If the observations x_i are independent random variables with variance ² then according to the EWMA charts, the variance of z_i will be ________________

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