Answer:
Step-by-step explanation:

Pooled proportion

The hypothesis null would be

Alternate can be either not equal to or < or > according to need
Std error for difference of proportions

Hence test statistic = p difference/std error
= 
where p is given as above as combined proportion.
Answer:
Answer: a) 15 + 12y b) 14y - 27xy^2 + 18y^3c) 12ar + 54abr - 120brSolution:a) 5x3 + 6x2y15 + 6 x 2y= 15 + 12yb) 7x2y - 27xy^2 + 18y^3=14y - 27xy^2 + 18y^3c) 6a2r + 54arb - 60b2r= 12ar + 54abr - 120br
Step-by-step explanation:
Answer:
D is the answer!!
Step-by-step explanation:
so first you see all the numbers then you see that 0.45 is the least then you look to see and you see 2 problems that have 0,45 then you lokk at the second number there and D has 0.75 and you see that D have least to greatest!!
Answer:
Step-by-step explanation:
It is vital to first find the gradient/ slope between the points

let us use the point (6,1) to find the value of c
y=mx+c
1=1(6)+c
1-6=c
∴c=-5
the equation is given by
y=x-5