Question
A researcher has four prototypes for a small Unmanned Aerial System controller and wants to know which one that users prefer. The researcher asks 120
A researcher has four prototypes for a small Unmanned Aerial System controller and wants to know which one that users prefer. The researcher asks 120 participants to use each controller and annotate which one they liked best. At the conclusion of the study, the researcher hopes to have a clearly identified prototype that is best preferred among the four. The table below represents the number of times each prototype was chosen by the participants. Proto A Proto B Proto C Proto D 14 34 61 11 Use the five-step hypothesis testing process and StatCrunch to determine if there is a preferred prototype. Chi-Square Test for Independence Question 1: A researcher is interested in knowing if there are differences between the incidence of accidents among experienced and inexperienced pilots. They were able to collect 62 responses from a random number of pilots. Among them, 17 experienced pilots were in accidents, 26 were not; 13 inexperienced pilots were in accidents, 6 were not. Construct a contingency table. Run the Chi- Square test for independence using the calculator in the Module. State your findings and their significance. Do not forget to give summary statistics in APA format. Non-Parametrics Question 3 Match the non-parametric version of analysis with its parametric equivalent. A. Mann-Whitney U B. Kruskal-Wallis C. Wilcoxon Signed Rank D. Friedman E. Spearman's Rank
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