4. A washing machine manufacturer says that 85% of its washers last five years before repairs are necessary. A random sample of 92 washers showed that 73 of them lasted five years before they needed repair. Does this data indicate that the 19 manufacturer's claim is too high? Use a 5% level of significance a. Hypotheses are: ? O b. Test statistic? "Maybe I shouldn't have used it to mix that cement?" c. P-value? d. Include a graph that shows the relative position of the sample outcome and shade the area corresponding to the p-value. Make sure that the horizontal axis is scaled. e. Decision ? f. Conclusion