Reference no: EM132914827
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.