In an experiment designed to measure the time necessary
Chapter 8, Problem 8.32(choose chapter or problem)
In an experiment designed to measure the time necessary foran inspectors eyes to become used to the reduced amount oflight necessary for penetrant inspection, the sample averagetime for n 9 inspectors was 6.32 sec and the sample standarddeviation was 1.65 sec. It has previously been assumedthat the average adaptation time was at least 7 sec. Assumingadaptation time to be normally distributed, does thedata contradict prior belief? Use the t test with .1.
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