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Question #4 Twenty randomly sampled people were asked to dial thirty telephone numbers each. The incidence of numbers misdial
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Answer #1

Solution:

a) Entered data in excel and used formula for the answers.

Name Formula Answer
mean =AVERAGE(A1:A20) 3.45
median =MEDIAN(A1:A20) 3.5
mode =MODE(A1:A20) 2
Sample standard deviation =STDEV(A1:A20) 1.8771
Population standard deviation =STDEVP(A1:A20) 1.8296
count =COUNT(A1:A20) 20

b)

Five number summary:

Name Formula Answer
Min =MIN(A1:A20) 0
Quartile 1 =QUARTILE(A1:A20,1) 2
Quartile 3 =QUARTILE(A1:A20,3) 5
Median =MEDIAN(A1:A20) 3.5
Max =MAX(A1:A20) 7

Done

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