A random sample of size 36 is taken from a population with mean 50 and standard...

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A random sample of size 36 is taken from a population with mean 50 and standard...

A random sample of size 36 is taken from a population with mean 50 and standard deviation 5. Find P( x¯x¯ < 51.5).

The weight of a product is measured in pounds. A sample of 50 units is taken from a recent production. The sample yielded X¯¯¯X¯ = 75 lb, and we know that σ² = 100 lb. Calculate a 99 percent confidence interval for μ.

math Statistics-And-Probability

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