The masses, $$\(m\)$$ kilograms, of flour in a random sample of 90 sacks of flour are summarised as follows. $$\( n=90 \quad \Sigma m=4509 \quad \Sigma m^{2}=225950 \)$$ Find the probability that the confidence interval found in part (b) is wholly above the true value of the population mean. ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

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