A soup maker says that the standard deviation of the sodium content in one serving of a certain soup is no more than 50 milligrams.
(a) State the null and alternative hypotheses, and identify which represents the claim,
(b) Describe type I and type II errors for a hypothesis test of the claim,
(c) Explain whether the hypothesis test is left-tailed, right-tailed, or two-tailed,
(d) Explain how you should interpret a decision that rejects the null hypothesis,
(e) Explain how you should interpret a decision that fails to reject the null hypothesis. |

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