xˉ=2.112 lb,s=1.111 lb\bar{x}=2.112\ lb, s=1.111\ lbxˉ=2.112 lb,s=1.111 lb
a. x=5.64 lbx=5.64\ lbx=5.64 lb
b.
The difference is approximately 3.1733 standard deviations.
c.
d.Since 3.1755>2,3.1755>2,3.1755>2, then the weight of 5.64 lb is significant.
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