Project #71353 - Ap Statistics

significance testing

Problem

My mom had the smae washing machine from my childhood until after i got married (about 30 years.) A washing machine manufacturer says that 85% of its washers last five years before repairs are necessary. a random sample of 100 washers showed that 73 of them lasted five years before they needed repair. does this datat indicate that the manufactuer's claim is too high? use a 1% significance level.

Subject Mathematics
Due By (Pacific Time) 05/18/2015 03:00 am
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