Aman who moves to a new city sees that there are two routes he could take to work. a neighbor who has lived there a long time he tells him route a will average 5 minutes faster than route b. the man decides to experiment. each day he flips a coin to determine which way to go, driving each route 10 days. he finds that route a takes an average of 49 minutes, with standard deviation 2 minutes, and route b takes an average of 50 minutes, with standard deviation 4 minutes. histograms of travel times for the routes are roughly symmetric and show no outliers. (alpha =0.05)

find a 95% confidence interval for the difference between the route b and route a commuting times. ( , )

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

i think it is 70

step-by-step explanation:

there would only be 50 odd numbers between 1 and 100 so therefor there would be 50 even so that would only be 50 odd numbers.

there were a lot of them but the first one to pop up on a google search was bts