A professor observed the number of times mobile phones interrupted the signal of her microphone during her lecture. She did this for 10 randomly selected lectures before and after issuing a warning to confiscate mobile phones during class. Software Output: Shapiro-Wilk Test data: paired_differences_counts p-value = <0.0001 What is the most appropriate test procedure to test if the warning is effective (average number of interruptions due to mobile phones decreased)? a. Z-test b. Paired t-test c. Paired Wilcoxon-Signed Rank Test

A professor observed the number of times mobile phones interrupted the signal of her microphone during her lecture. She did this for 10 randomly selected lectures before and after issuing a warning to confiscate mobile phones during class. Software Output: Shapiro-Wilk Test data: paired_differences_counts p-value = <0.0001 What is the most appropriate test procedure to test if the warning is effective (average number of interruptions due to mobile phones decreased)? a. Z-test b. Paired t-test c. Paired Wilcoxon-Signed Rank Test

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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