Why is it customary to say that a hypothesis has "not been rejected" rather than "accepted"?

When something is moving, it is in motion. pressing the gas pedal in a car will put the car in motion. two important properties of motion are speed and direction. speed is how fast an object is moving. tony and tanya both run for the same amount of time, in the same direction. tanya runs much further than tony in that time. how does tony's speed compare to tanya's speed? a) their speed is equal. b) tony is slower than tanya. c) tony is faster than tanya. d) without a stopwatch, you can't say for certain.

What does it signify if point 1 shifts down and to the right? a. the price level and the real gdp are falling. b. the real gdp is falling, and supply is increasing. c. the price level is rising, and production is increasing. d. the price level is falling, and demand and the real gdp are rising.

Miniver cheevy's foolishness is clearly on display in the fifth quatrain. how so?