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Refer to the Wheat Chex box fill problem 17 56 with

Refer to the Wheat Chex box fill problem 17.56 with μ = 465 and σ = 3. Below are 30 individual observations on box ll.

(a) Prepare a histogram and/or normal probability plot for the sample. Does the sample support the view that box fill is a normally distributed random variable? Explain.

(b) Is the mean of these 20 same means where it should be?

(a) Prepare a histogram and/or normal probability plot for the sample. Does the sample support the view that box fill is a normally distributed random variable? Explain.

(b) Is the mean of these 20 same means where it should be?

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