Answer:
there isn't any question here,how are we going to be of help to you
Answer:
3) One-sided,compare two populations
Step-by-step explanation:
A manufacturer wants to investigate the whether there is an increase in the mean gas mileage of mid-sized sedan having new type of tire compared to mean gas mileage of mid-sized sedan not having new type of tire.
So, there are two populations :
population 1 : mid-sized sedan having new type of tire.
population 2 : mid-sized sedan not having new type of tire.
So, two populations are being compared.
Also, A manufacturer is investigating whether there is an increase in mean gas mileage.The alternative hypothesis will be right tailed and so, this corresponds to one sided test.
3 pets probability of cat over dog................ 2:3
(x)+(x)+(x+4)+(x+4)= (x)+(x+9)+(x+5) *add like term*
4x+4=3x+14 *subtract 3x from both sides*
x+4=14 subtract 4 from each side
x=10
(1 + 9i + 5 - 3i)/2 = (6 + 6i)/2 = 3 + 3i