Assume that the mean mass of adult western grey squirrels in California is 749 grams with a standard deviation of 103 grams. Test the hypothesis that the squirrels in the arboretum have a different mean mass. You manage to catch and weigh 10 adult grey squirrels and obtain their masses.
- What are the average and standard deviation of the mass of your sample of squirrels from the arboretum?
- Maintaining the probability of making a Type I error at 5%, is the mass of adult grey squirrels in the arboretum different from the mean for adult grey squirrels in California?