ASQ
CSSBB · Question #225
CSSBB Question #225: Real Exam Question with Answer & Explanation
The correct answer is B. no. See the full explanation below for the reasoning.
Question
A sample of size 50 from machine A has a mean of 18.2 and standard deviation 3.1. A sample of size 40 from machine B has mean 17.6 and standard deviation 2.8. Do these data indicate that the population for machine A has a larger mean? Assume the populations are normal.
Options
- Ayes
- Bno
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