Provided below are summary statistics for independent simple random samples from two populations. preliminary data analyses indicate that the variable under consideration is normally distributed on each population. decide whether use of the pooled t-test and pooled t-interval procedure is reasonable. x overbar 1equals198, s 1equals11.7, n 1equals86, x overbar 2equals191, s 2equals13.3, n 2equals78

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph