Using the sample 0.80. 0.81, 0.81. 0.82, 0.81. 0.82,
Chapter 25, Problem 25.4(choose chapter or problem)
Using the sample 0.80. 0.81, 0.81. 0.82, 0.81. 0.82, 0.80,0.82. 0.81. 0.81 (length of nails in inches), test the hypothesis JL = 0.80 in. (the length indicated on the box) against the alternative JL *' 0.80 in. (A"sume normality. choose a = 5%.)
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