The number of coughs during an 80 minute exam has a Poisson

The number of coughs during an 80 minute exam has a Poisson distribution with mean 10 6 What is the probability that at least one cough will occur in any given 15 minute time span? Give your answer to three decimal places. The dean of a college of business wants to create some marketing materials to advertise its MBA in finance The university sends a survey to a random sample of [n] individuals with MBAs who are mutual fund managers for large investment firms The survey asked two questions \"What was the rank of your MBA program\" and \"Did your funds outperform the- market last year? \" The responses were entered into a 3 Times 2 contingency table similar to the one below. What value of the chi-square distribution, to two decimal places, would mark the rejection region for a test at the 0.01 level of significance?

Solution