The National Academy of Science reported that 31% of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 31%. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 188 recent articles published by reputable mathematics research journals and finds that 74 of these articles have US authors. Does this evidence support the mathematics chairperson’s claim that the percentage is no longer 31%? Use a 0.05 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test. Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places. Step 3 of 3: Draw a conclusion and interpret the decision.
The National Academy of Science reported that 31% of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 31%. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 188 recent articles published by reputable mathematics research journals and finds that 74 of these articles have US authors. Does this evidence support the mathematics chairperson’s claim that the percentage is no longer 31%? Use a 0.05 level of significance.
Step 1 of 3 : State the null and alternative hypotheses for the test.
Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
Step 3 of 3: Draw a conclusion and interpret the decision.
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