Suppose you have constructed a 90% confidence interval of a population mean, (19.7, 21.2). decide which statement below is the correct interpretation of the results. justify your choice, with as much detail as possible, and in your own words. with 90% confidence, the mean is in the interval (19.7,21.2). there is a 90% probability that the actual mean will be in the interval (19.7,21.2).

answer: 12

step-by-step explanation:

because yes

b. 2 and 4

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %