jbcupcake
jbcupcake
28.11.2019 • 
Mathematics

Asample of 100 receipts from a restaurant showed that 12 had errors. what is the 95% confidence interval for the proportion of all receipts that have error? note that z 0.025= 1.96 and t 0.025= 1.984 for 99 degrees of freedom?

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