Population mean

Question

The computed test statistic (rounded to two decimal places) for a claim about a population mean given "x - bar" = 143, "mu" = 150, "lowercase sigma" = 5.6, and n = 10, assuming a normal population.

Answer 1

Kim,

         Z=(143-150)/((5.6/10^1/2))=-3.95

 

Is this clear?

 

Jim