An experiment designed to estimate themean reaction time of a certain chemical process has y = 79.6
Question:
An experiment designed to estimate themean reaction time of a certain chemical process has ¯y = 79.6 s, based on 144 observations. The standard deviation is
σ = 8.
(a) What is the maximum error of estimate at 0.95 confidence?
(b) Construct a 0.95 confidence interval on μ.
(c) How large a sample must be taken so that the 0.95 maximum error of estimate is 1 s or less? LO.1
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