3.2 Standard deviation of sampling distribution 0 Points Grading comment: Suppose you are analyzing the corrected data by considering samples of size n n from this adjusted distribution. How does adding 5 years to each tree's age affect the standard deviation of the sampling distribution of the sample mean ( ^ ^ )? Choice 1 of 5: It increases proportionally with the increase in individual ages. Choice 2 of 5: It decreases proportionally with the increase in individual ages. Choice 3 of 5: It remains the same as before the ages were adjusted. Choice 4 of 5: It becomes zero. Choice 5 of 5: Unable to tell because the sample size is not provided