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**Jim****Guest**

Can anyone help me with this question at all???

Consider two measurement situations. In the first the

sample mean X ~ N(µ, 10) and in the second the sample

mean X ~ N(µ, 2.5). If the variance of a component

Xi is 100, how many observations have been taken in the

two situations? In each case calculate the probability that

X is within 1 of µ.

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