Solved: A chemical process has produced, on the average, 800 tons of chemical per day
Chapter 10, Problem 10.63(choose chapter or problem)
A chemical process has produced, on the average, 800 tons of chemical per day. The daily yields for the past week are 785, 805, 790, 793, and 802 tons. a Do these data indicate that the average yield is less than 800 tons and hence that something is wrong with the process? Test at the 5% level of significance. What assumptions must be satisfied in order for the procedure that you used to analyze these data to be valid? b Use Table 5, Appendix 3, to give bounds for the associated p-value. c Applet Exercise Use the applet Students t Probabilities and Quantiles to find the exact p-value. Does the exact p-value satisfy the bounds that you obtained in part (b)? d Use the p-value from part (c) to decide at the 5% significance level whether something is wrong with the process. Does your conclusion agree with the one that you reached in part (a)?
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