Incorrect

The question was: If the distribution was normal, between which two values would 68% of the values lie?

Your Answer: [90, 131]


Answer and explanation: Your answer is incorrect.

In a normal distribution, 68% of the observations fall within one standard deviation of the mean. The mean is 110.23 and the standard deviation is 23.63. To find the lower limit, calculate:
110.23 - 23.63 = 86.6. Similarly, the upper limit is 110.23 + 23.63 = 133.86. Rounding off, the range is from 87 to 134.

N
Mean
Median
Trimean
Minimum
Maximum
25th percentile
75th percentile
s
se of mean
Skew
Kurtosis

147
110.23
111.00
110.12
29.00
189.00
94.00
124.50
23.63
1.95
0.02
1.14


 


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