You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. how many randomly selected air passengers must you survey? assume that you want to be 99% confident that the sample percentage is within 1.5 percentage points of the true population percentage.
a. assume that nothing is known about the percentage of passengers who prefer aisle seats.
n=
b. assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat.
n=

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

yes the data was not prsented

step-by-step explanation: