# Question

An important step in conducting the sign test is to determine whether the sample data contradict the alternative hypothesis H1 For the sign test described in Exercise 1, identify the null hypothesis and the alternative hypothesis, and explain how the sample data contradict or do not contradict the alternative hypothesis.

## Answer to relevant Questions

Positive signs: 856; negative signs: 151; ties: 57 (from a Pew Research Center poll of adults who were asked if they know what Twitter is) Assume that matched pairs of data result in the given number of signs when the value ...Example 2 using the following times for American Airlines Flight 19. Use the sign test for the data consisting of matched pairs. Refer to Data Set 19 in Appendix B for the amounts (in oz) in cans of regular Coke. The cans are labeled to indicate that the contents are 12 oz of Coke. Use a 0.05 significance level to test the claim that cans of Coke are ...Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. Use a 0.05 significance level. Listed below are samples of taxi-out times (min) for American Airlines Flights 19 and 21. Use the sample data to test the claim that taxi-out times for Flight 19 and Flight 21 have the same median. Use a 0.05 significance ...Post your question

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