How did they get 67.24 from 8.2? I am attaching of problem with solution. I just need to know where or how did they get 67.24 from 8.2.

Write the following claim symbolically: "the population standard deviation is different from 8.2 units" 082 67.24 Show Detailed Solution Write the following claim symbolically: "the population standard deviation is different from 8.2 units" 02 - 67.24 Question Help: Video Written Example IN Message instructor _ Post to forum