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A Researcher Records the Time in Seconds It Takes a Sample

Question 40

Multiple Choice

A researcher records the time in seconds it takes a sample of participants to walk alone through a dark portion of campus.The researcher computes SS = 1,200.Assuming that a sample of 25 participants was observed in this study,what is the standard deviation for these data?


A) 48 seconds
B) 50 seconds
C) 6.9 seconds
D) 7.1 seconds

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