Mathematics, 15.11.2019 22:31 littledudefromacross
The toylot company makes an electric train with a motor that it claims will draw an average of only 0.8 ampere (a) under a normal load. a sample of nine motors was tested, and it was found that the mean current was x = 1.32 a, with a sample standard deviation of s = 0.44 a.
do the data indicate that the toylot claim of 0.8 a is too low? (use a 1% level of significance.)
Answers: 2
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