You are interested in knowing whether the wolf population in Yellowstone national park has increased since December of 2013, when the number of wolves counted inside the park was 95.1 You recognize that wolves can come and go from the park, making it difficult to know how many wolves are typically located in Yellowstone. To get a better estimate, you decide to count the wolves on several days and take the average. You count the wolves on four different days and find 103 the first day, 92 the second day, 98 the third day, and 99 the fourth day.

Calculate the test statistic and select it from the options below. (3 points)

a) 0.70

b) 1.32

c) 1.91

d) 2.39