Calculating the test statistic of a printing plant

Reference no: EM1389920

The superintendent of a printing plant has selected a random sample of 100 rolls of paper from a large shipment. The average length of the sample rolls is 416 feet, with a variance of 2704 feet. The manufacturer claims that the mean length of the rolls of paper is 425 feet. The superintendent doesn't believe the manufacturer and hires you to conduct using a significance level of 0.05.

Identify the Ha AND Ha?

Calculate the test statistic?

State any critical values of the rejection.

Sketch the appropriate diagram below.

State the conclusion.

Reference no: EM1389920

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