An engineer was comparing the output from two different processes by independently sampling each one From process A she took a sample of n1 64, which yielded a sample mean of y1 12 5 Process A has a known standard deviation, 2 1 From process B she took a sample of n2 100, which yielded a sample mean of y2 11 9 Process B has a known standard deviation of 2 2 At 0 05 would the engineer conclude that both processes had the same average output LO 1

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Question: An engineer was comparing the output from two different processes by independently sampling each one. From process A she took a sample of n1 =

An engineer was comparing the output from two different processes by independently sampling each one. From process A she took a sample of n1 = 64, which yielded a sample mean of y¯1 = 12.5. Process A has a known standard deviation,

σ = 2.1. From process B she took a sample of n2 = 100, which yielded a sample mean of y¯2 = 11.9. Process B has a known standard deviation of σ = 2.2. At

α = 0.05 would the engineer conclude that both processes had the same average output? LO.1

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