Calculate the p-value from the sign test

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It is claimed that the median weight mofcertain loads of candy is 40,000 pounds.

(a) Use the following 13 observations and the Wilcoxon statistic to test the null hypothesis Ho: m = 40,000 against the one-sided alternative hypothesis Hu:m <40,000 at an approximate significance level of a = 0.05 41,195 39,485 41,229 36,840 38,050 40,890 38,345 34,930 39,245 31,031 40,780 38,050 30,906

(b) What is the approximate p-value of this test?

(c) Use the sign test to test the same hypothesis.

(d) Calculate the p-value from the sign test and compare it with the p-value obtained from the Wilcoxon test.

Reference no: EM132918214

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