Question: Using the large sample confidence interval formula for the mean, compute a 95% upper bound confidence interval for the mean when (a) ???? = 185,

Using the large sample confidence interval formula for the mean, compute a 95%

upper bound confidence interval for the mean when

(a) ???? = 185, ????̄ = 874.2, and ???? = 80.5.

(b) ???? = 150, ????̄ = 45.3, and ???? = 11.7.

(c) ???? = 260, ????̄ = 134.6, and ???? = 12.9.

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