A psychologist has an alternate (research) hypothesis as ‘Social skills training are more effective than traditional psychotherapy for treating shyness’. i. What type of hypothesis is this, one tailed or two tailed?
ii. Write a null hypothesis for the above research hypothesis?

Simba travel agency arranges trips for climbing mount kilimanjaro. for each trip, they charge an initial fee of \$100$100 in addition to a constant fee for each vertical meter climbed. for instance, the price for climbing to the shira volcanic cone, which is 30003000 meters above the base of the mountain, is \$400$400. let f(d)f(d) denote the fee of a trip ff (measured in dollars) as a function of the vertical distance climbed dd (measured in meters). write the function's formula. f(d)=