TABLE 8-14
The president of a university is concerned that the percentage of students who have cheated on an exam is higher than the 1% acceptable level. A confidential random sample of 1000 students from a population of 7000 revealed that 6 of them said that they had cheated on an exam during the last semester.
-Referring to Table 8-14, the president can be 90% confident that no more than 1% of the students at the university had cheated on an exam during the last semester.

Question

Quizplus · Accepted Answer

Using Table 8-14, with a sample size of 1000 and 6 students reporting cheating, we can calculate a 90% confidence interval of 0.41% to 1.59%. Since the upper bound of this interval is still below the 1% acceptable level, we can conclude with 90% confidence that no more than 1% of students at the university cheated on an exam during the last semester.

TABLE 8-14 The President of a University Is Concerned That the Percentage