A medical study followed a SAMPLE of 12 heart patients who had received electronic pacemakers. The time (in months) to the first electrical malfunction was recorded: 16 14 24 10 20 16 32 14 22 8 24 16...

A medical study followed a SAMPLE of 12 heart patients who had received electronic pacemakers. The time (in months) to the first electrical malfunction was recorded:

 16   14        24    10    20    16    32    14    22    8      24    16

1. Calculate the estimated standard error of the mean (two decimal place)
   


2. Determine the critical value of t for α = .02 (2 tail test)


3. Find the 98% confidence interval for the population mean