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   Using the test, the p-value resulted to 0.1063. Based on this, what is the appropriate conclusion?  a. There is evidence that the average number of interruptions due to mobile phones decreased after issuing a warning to the class. b. There is no evidence that the average number of interruptions due to mobile phones decreased after issuing a warning to the class

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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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
 
Using the test, the p-value resulted to 0.1063. Based on this, what is the appropriate conclusion? 
a. There is evidence that the average number of interruptions due to mobile phones decreased after issuing a warning to the class.
b. There is no evidence that the average number of interruptions due to mobile phones decreased after issuing a warning to the class.
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