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1- Making conclusions A student performs a test of Ho: = 12 versus Ha : 12 at the a = 0.05 significance level and gets

1- Making conclusions A student performs a test of Ho: = 12 versus Ha : 12 at the a = 0.05 significance level and gets a P-value of 0.01. The student writes: "Because the P-value is small, we reject Ho. The data prove that He is true." Explain what is wrong with this conclusion 2- Heavy bread? The mean weight of loaves of bread produced at the bakery where you work is supposed to be 1 pound. You are the supervisor of quality control at the bakery, and you are concerned that new employees are producing loaves that are too light. Suppose you weigh an SRS of bread loaves and find that the mean weight is 0.975 pound. a. State appropriate hypotheses for performing a significance test. Be sure to define the parameter of interest. b. Explain why there is some evidence for the alternative hypothesis. c. The P-value for the test in part (a) is 0.0806. Interpret the P-value. d. What conclusion would you make at the a = = 0.01 significance level

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