Financial analyst Larry Potts needs a sample of 100 securities listed on either the New York Stock Exchange (NYSE)or the American Stock Exchange (AMEX).According to the Wall Street Journal's "Stock Market Data Bank," 2,531 NYSE securities and 746 AMEX securities were traded on the previous business day.Larry directs his staff to randomly select 77 NYSE and 23 AMEX securities.His sample is a ____________.
A)disproportionate systematic sample
B)disproportionate stratified sample
C)proportionate stratified sample
D)proportionate systematic sample
E)proportionate cluster sampling

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The Answer of Financial analyst Larry Potts needs a sample of 100 securities listed on either the New York Stock Exchange (NYSE)or the American Stock Exchange (AMEX).According to the Wall Street Journal's "Stock Market Data Bank," 2,531 NYSE securities and 746 AMEX securities were traded on the previous business day.Larry directs his staff to randomly select 77 NYSE and 23 AMEX securities.His sample is a ____________.
A)disproportionate systematic sample
B)disproportionate stratified sample
C)proportionate stratified sample
D)proportionate systematic sample
E)proportionate cluster sampling

Financial Analyst Larry Potts Needs a Sample of 100 Securities