A + 3A = 120
4A = 120
A = 30
B = 90
Remember the slope equation!
y2-y1/x2-x1
1.) 5-0/1-0
slope=5
2.)4-2/6-3
slope= 2/3
3.)3-0/4-0
slope: 3/4
4.)2.5-(-2.5)/1-(-1)
slope=5/2
It is formulae i think it just maybe 1
Answer:
it is clear that at 95% confidence that the bonus plan has increased the sales significantly, because if we observe you will notice that sales after is greater than sales before in all six cases.
Step-by-step explanation:
A 95% confidence interval as we have above is the range of values that we can say with utmost certainty and confidence that 95% chance it contains the true mean of the population. in other words we can say that a 95% confidence interval defines a range of values that you can be 95% certain contains the population mean.