Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 18 seconds for one particular maze. A researcher thinks that a loud noise...

Extracted text: Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 18 seconds for one particular maze. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures how long each of 10 mice takes with a loud noise as stimulus. The appropriate hypotheses for the significance test are O Ho : µ < 18;="" ha="" :="" µ="18." но="" :="" и="" %3d="" 18;="" на="" :="" и="" +="" 18.="" a="" но="" :="" и="" 3d="" 18;="" на="" :="" и="">< 18.="" a="" о="" но="" :="" и="" 3="" 18;="" на="" :="" и=""> 18.