Your population is comprised of 1,000,000 potential customers. Your marketing department has segmented/stratified this market as follows: 400,000 are college graduates. 100,000 have graduate degrees....

1. 
   
   Your population is comprised of 1,000,000 potential customers. Your marketing department has segmented/stratified this market as follows:


2. 400,000 are college graduates.


3. 100,000 have graduate degrees.


4. 300,000 have some college credits.


5. 200,000 have high school diplomas.

Your company wants to take
a proportional stratified probability sample
to assess the percentage of people who will favor a certain issue. You have no idea what this percentage might actually be. Furthermore, you want to measure this percentage with 95% confidence and a margin of error of 7%. Answer the following:

1. How many samples should be selected from each stratum?


2. How should these samples be selected?