2) The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to 2) maintain a true mean temperature, , of 48 F, ideal for a certain type of German pilsner. The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect. A) HO: H S 48 B) Ho: H 2 48 C) Ho: H # 48 D) HO: H = 48 H1:U > 48 H1:H