Historically, the number of kangaroo attacks per month at an Australian ecological park has been modeled as a Poisson random variable with parameter 3.85. An environmental agency wants to see if global warming has displaced sharks and thus the number of shark attacks is lower. They would like to test the null hypothesis that the distribution of the number of shark attacks per month has not changed, versus the alternative that the average number is now lower. The decision rule is: "if there are 3 or fewer attacks in each of the summer months (December, January, February and March), reject
H_(0)." Assuming independence between months, what is the test size? 0.0015 0.285 0.116 0.023 0.046