Tom begins a hike at an elevation of 6,000 feet. tom's elevation, at any time, is shown on the graph below. which statement is true? a. the elevation tom is at always decreases compared to the time. b. tom decreases in elevation by that same amount every hour for the last three hours. c. tom walks at all times, for the entire hike. d. tom never changes more than 1,000 feet of elevation per hour.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true