Listed below are brain volumes (cm3) of unrelated subjects used in a study. Assume the data is from a simple random sample. Use a 0.01 significance level and the critical values method to test the claim that the population of brain volumes has a mean equal to 1100.0cm3. Be sure to include all steps of a hypothesis test.
The critical values of z= -2.575 and z= 2.575 the formula z= x bar- u/sigma / square root of n
but in general, we state a hypothesis. then compare the results to determine which hypothesis is most likely you seem to have the right idea that its a 2 tailed test of equality.
