Question: Exam time The instructor of a large math class estimates that at the intended level of difficulty, his undergraduate midterm exams require on average 10

Exam time The instructor of a large math class estimates that at the intended level of difficulty, his undergraduate midterm exams require on average 10 minutes for graduate students in his department to complete. If the average is longer than 10 minutes, then the exam is likely too hard and needs to be revised. As usual, the professor gathers his 20 teaching assistants in a room to have them test out the exam. You can assume the teaching assistants comprise a random selection of the graduate students in his department. (Data in Exam time)

a) Conduct a hypothesis test using the appropriate t-distribution.

Clearly state your conclusions, using a significance level of 0.05.

*b) Conduct a hypothesis test using the bootstrap. Clearly state your conclusions, using a critical value of 0.05

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