Suppose the funnel experiment (described in class) was conducted 12 times with t

Question

Suppose the funnel experiment (described in class) was conducted 12 times with the following results (in sec): Midterm Marks 5.0 5.8 7.2 6.4 4.7 3.1 7.2 7.4 5.97.77.9 4.3 What percentage of outcomes are less than or equal to 5 seconds? Incorrect [0,10) Incorrect [10,20) Incorrect [20,30) Correct: [30,40) Incorrect [40,50) Incorrect [50,60) Incorrect [60,70) Incorrect [70,80) Incorrect [80,90) (90,100) You are correct. Your r no. is 156-7047 Previous Tries What is the percentage of outcomes are within 1 standard deviation of the mean? 0 [0.10) O [10,20) O [20,30) o [30,40) O [40,50) 0 [50,60) (60,70) (70,80) O [80,90) (90,100] Submit Answer Incorrect. Tries 1/3 Previous Tries What is the percentage of outcomes are within 2 standard deviations of the mean?

Explanation / Answer

mean = 6.05

sd =

1.5229

i sd within mean

(6.05 - 1.5229, 6.05 + 1.5229)

=(4.5271,7.5729)

data sorted

3.1   4.3   4.7   5   5.8   5.9   6.4   7.2   7.2   7.4   7.7   7.9   

total = 12

4.7   5   5.8   5.9   6.4   7.2   7.2   7.4 values are within 1 sd of mean

total = 8

pecentage = 8/12 *100 % = 66.66 %

60-70 is correct

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