?Measuring Reaction Time Researchers wanted to determine whether the reaction time (in seconds) of males differed from that of females to a go/no go st
Chapter 11, Problem 14(choose chapter or problem)
Measuring Reaction Time Researchers wanted to determine whether the reaction time (in seconds) of males differed from that of females to a go/no go stimulus. The researchers randomly selected 20 females and 15 males to participate in the study. The go/no go stimulus required the student to respond to a particular stimulus and not to respond to other stimuli. The results are as follows:
(a) Is it reasonable to use Welch’s t-test? Why? Note: Normal probability plots indicate that the data are approximately normal and boxplots indicate that there are no outliers.
(b) Test whether there is a difference in the reaction times of males and females at the = 0.05 level of significance.
(c) Draw boxplots of each data set using the same scale. Does this visual evidence support the results obtained in part (b)?
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