3 A sample was taken of adults living in California. The number of hours each person spent in the gym the previous week was recorded. The computer output below summarizes the data. Descriptive Statistics: No. Hours Variable N N* Mean SE Mean StDev Minimum Q1 Median Q3 Maximum No. Hours 30 0 3.560 0.419 2.297 0.000 2.800 3.650 6.175 7.100 What is the value of the standard error? Give the exact value do not round