It is known that a certain laboratory task takes the average person 2.5 seconds. A developmental psychologist was interested in whether older people take longer to perform this task. The psychologist tested 30 randomly selected 80-year-olds. Their mean time was 2.7 seconds, with standard deviation of 1.4 seconds. Use the steps of hypothesis testing at .05 level of significance and critical t value of 1.699. What should the psychologist conclude?

Reject H0 because the older people did not take significantly longer to perform the task.

Reject H0 because the older people took significantly longer to perform the task.

Fail to reject H0 because the older people took significantly longer to perform the task.

Fail to reject H0 because the older people did not take significantly longer to perform the task.