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. 300,000 have some college credits. 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: How many total samples should be selected? What should be the consideration in deciding to select a stratified

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