Mathematics, 08.04.2020 23:13 pin193179
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 79 of them lasted five years before they needed repair. Test to see if there is a difference between the manufacturer claim and the sample results.
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A washing machine manufacturer says that 85% of its washers last five years before repairs are neces...
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