Question 18

QUESTION 18 "A cognitive psychologist knows that the average person takes 2.5 seconds to complete a laboratory decision task and wants to determine if a sample (n : 18) of 80-year olds differ in their time to complete. She observes a test statistic of t = 1.09, what would be the cognitive psychologist's decision and MOST appropriate conclusion If testing at the alpha level of 0.01?" Retain Null Hypothesis (HO): There is no evidence that the sample of 80-year old's reaction time Is significantly different. O Reject Null Hypothesis (HO). There is a significant difference in reaction time for the 80-year old adult sample. Reject Null Hypothesis (HO). The 80-year old's reation time is significantly fastor