Question

2(h) 1.0 point possible (graded, results hidden) Let [ S_{n}:=A_{n}-left(ar{X}_{n} ight)^{2}=overline{X_{n}^{2}}-left(ar{X}_{n} ight)^{2}=frac{1}{n} sum_{i=1}^{n} X_{i}^{2}-left(frac{1}{n} sum_{i=1}^{n} X_{i} ight)^{2} ] Using the fact that [ Pleft(-0.3<ar{X}_{9}<0.3 ight)=0.63 ext { and } Pleft(0.9<S_{9}<1.1 ight)=0.15, ] Can ( Pleft(-0.3<ar{X}_{9}<0.3, 0.9<S_{9}<1.1 ight) ) be determined? If yes, enter the value below; if no, enter DNE. [ Pleft(-0.3<ar{X}_{9}<0.3, 0.9<S_{9}<1.1 ight)= ]

          2(h)
1.0 point possible (graded, results hidden)

Let
[ S_{n}:=A_{n}-left(ar{X}_{n}
ight)^{2}=overline{X_{n}^{2}}-left(ar{X}_{n}
ight)^{2}=frac{1}{n} sum_{i=1}^{n} X_{i}^{2}-left(frac{1}{n} sum_{i=1}^{n} X_{i}
ight)^{2} ]

Using the fact that
[ Pleft(-0.3<ar{X}_{9}<0.3
ight)=0.63 	ext { and } Pleft(0.9<S_{9}<1.1
ight)=0.15, ]

Can ( Pleft(-0.3<ar{X}_{9}<0.3, 0.9<S_{9}<1.1
ight) ) be determined? If yes, enter the value below; if no, enter DNE.
[ Pleft(-0.3<ar{X}_{9}<0.3, 0.9<S_{9}<1.1
ight)= ]

$2(h) 1.0 point possible (graded, results hidden) Let [ Sn:=An-left(arXn ight)^2=overlineXn^2-left(arXn ight)^2=frac1n sumi=1^n Xi^2-left(frac1n sumi=1^n Xi ight)^2 ] Using the fact that [ Pleft(-0.3<arX9<0.3 ight)=0.63 ext and Pleft(0.9<S9<1.1 ight)=0.15, ] Can ( Pleft(-0.3<arX9<0.3, 0.9<S9<1.1 ight) ) be determined? If yes, enter the value below; if no, enter DNE. [ Pleft(-0.3<arX9<0.3, 0.9<S9<1.1 ight)= ]$

Added by Zuhair A.

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