A hospital director believes that under 42% of the test tubes contain errors. A sample of 150 tubes found 57 errors. Is there sufficient evidence at the 0.01 level to substantiate the hospital director's claim? State the null and alternative hypotheses for the above scenario.

Answer rating: 100% (QA)

Given population Sample Corries sample Proportion site 1 150 found 1 51 001 null hypothes... View the full answer