(4 points) a recent study resulted in a sample of n = 25 data points with a mean of 2 and a standard deviation of 5. because of this, researchers chose to reject : =0 in favor of : > 0 based on a 5% significance level. in fact, the sample results were miscalculated. assuming the conditions were met to conduct the test, for which of the errors listed below would you recommend the researchers switch their decision? treat each error as the only error made, and check the box next to each error that would require a change. a. the sample size n was actually 15. b. the mean was actually 1.75. c. the standard deviation was actually 1.5. d. the standard deviation was actually 10.