Asimple random sample of front-seat occupants involved in car crashes is obtained. among 2902 occupants not wearing seat belts, 30 were killed. among 7866 occupants wearing seat belts, 20 were killed. use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. complete parts (a) through (c) below. a. test the claim using a hypothesis test. consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. what are the null and alternative hypotheses for the hypothesis? test?
the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted down 3 units.
g(x) = ⌊x⌋−3 = f(x) -3
when we add or subtract from the function, this is a shift up or down
since we are subtracting this is a shift down of 3
how fast are they coming in the store and checking out
8: 05 - 0: 05=8: 00