Refer to the Acoustical Science & Technology (Vol. 35, 2014) study of irrelevant speech effects, Exercise 2.34
Question:
Refer to the Acoustical Science & Technology (Vol. 35, 2014) study of irrelevant speech effects, Exercise 2.34 (p. 49). Recall that subjects performed a memorization task under two conditions: (1) with irrelevant background speech and (2) in silence. The difference
in the error rates for the two conditions-called the relative difference in error rate (RDER)-was computed for each subject. Descriptive statistics for the RDER values
are shown in the SAS printout.
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a. Based on the histogram shown in Exercise 2.34, which rule is more appropriate for describing the distribution of the RDER values? Why?
b. Apply the rule you selected in part a to the data. Specifically, estimate the proportion of RDER values that fall in the interval x̅ ± 2s
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Step by Step Answer:
a Because the histogram in Exercise 234 is skewed to t...View the full answer
