PEC EPE Chemical Practice Questions - PEC Engineering Practice Examination - Chemical & Polymer Engineering (Part-II) Exam

A process yield sample (n = 5) is 78, 80, 82, 84, 86%. Sample mean and sample standard deviation (n−1) are:

82%; 3.16% 82%; 2.83% 80%; 3.16% 82%; 4.00%

Correct Answer:

82%; 3.16%

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