Has the Introduction of More Music Download Services Changed the Number

Multiple Choice

Has the introduction of more music download services changed the number of university students that download music for free from the internet? Two years ago,approximately 50,000 university students admitted to downloading music for free from the internet.

A) $\mathrm { H } _ { 0 }$ : ? = 50,000 $\mathrm { H } _ { \mathrm { A } }$ : ? ? 50,000
B) $\mathrm { H } _ { 0 }$ : ? < 50,000 $\mathrm { H } _ { \mathrm { A } }$ : ? = 50,000
C) $\mathrm { H } _ { 0 }$ : ? > 50,000 $\mathrm { H } _ { \mathrm { A } }$ : ? = 50,000
D) $\mathrm { H } _ { 0 }$ : ? = 50,000 $\mathrm { H } _ { \mathrm { A } }$ : ? < 50,000
E) $\mathrm { H } _ { 0 }$ : ? = 50,000 $\mathrm { H } _ { \mathrm { A } }$ : ? > 50,000