Suppose You Intend to Test the Claim That a Typical

Suppose you intend to test the claim that a typical high school student in Sydney spends more than $50 a week on mobile phone calls. Which hypotheses are used to test the claim? $\begin{array} { | l | l | } \hline \text { A. } & H _ { 0 } : \mu \neq 50 \\& H _ { 1 } : \mu < 50 \\\hline \text { B. } & H _ { 0 } : \mu = 50 \\& H _ { 1 } : \mu \neq 50 \\\hline \text { C. } & H _ { 0 } : \mu \neq 50 \\& H _ { 1 } : \mu = 50 \\\hline \text { D. } & H _ { 0 } : \mu = 50 \\& H _ { 1 } : \mu > 50 \\\hline\end{array}$