Question: A donut company makes glazed donuts. Restaurant specifications include that the standard deviation of the amount of glaze must not exceed 2 ounces. The quality-control

A donut company makes glazed donuts. Restaurant specifications include that the standard deviation of the amount of glaze must not exceed 2 ounces. The quality-control manager selects a random sample of 30 donuts from a certain batch and finds that the standard deviation is 2.2 ounces. Assume that the amount of glaze is normally distributed. Test the claim that the standard deviation of the amount of glaze is greater than 2 ounces at the = 0.01 level of significance.

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