Granola Crunch cereal is packaged in 1 pound boxes. Susan Torres, a quality control analyst who works for the manufacturer of the cereal, will conduct a hypothesis test to check if the packaging process is over-filling the boxes. A sample of 13 cereal boxes of Granola Crunch yields a mean weight of 1.06 pounds of cereal per box and a sample standard deviation of 0.1. Assume that the weight is normally distributed. (a) Find the test statistic for the test. (Round to two decimal places.) (b) Find the p-value for the test. (Round to three decimal places.) (c) At the 5% significance level, can Ms. Torres conclude that the
Granola Crunch cereal is packaged in 1 pound boxes. Susan Torres, a quality control analyst who works for the manufacturer of the cereal, will conduct a hypothesis test to check if the packaging process is over-filling the boxes. A sample of 13 cereal boxes of Granola Crunch yields a mean weight of 1.06 pounds of cereal per box and a sample standard deviation of 0.1. Assume that the weight is
(a) Find the test statistic for the test. (Round to two decimal places.)
(b) Find the p-value for the test. (Round to three decimal places.)
(c) At the 5% significance level, can Ms. Torres conclude that the packaging process is over-filling the boxes? Explain briefly.
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