14. The average household income in the USA is $54000 with standard deviation of 15000 (this is the population)
15. A researcher from ODU thinks that Virginia Beach has a richer population relative to the population of the USA. The researcher thinks that the average in per HH in VB is 56000

The researcher samples 100 families and finds that the average hh income in his sample for VB is $55210 ( =5%)

Questions:

1. Define Ho and H1
2. Find the critical X bar
3. What is your conclusion for the test
4. Calculate the type 2 error () for this test