First, let's create the ratios of sweetened to unsweetened. To do this, you would have to subtract the number of people that preferred unsweetened from the total.
Westside mall: 15:30 or
Eastside mall: 13:26 or
Now, you would divide to both ratios.
15 ÷ 30 = 0.5
13 ÷ 26 = 0.5
They have the same sum, meaning,
they are the same.
Westside Mall shoppers are just as likely to prefer unsweetened tea as Eastside Mall shoppers. I hope this helps!
Answer:
y = 3x + 4
Step-by-step explanation:
y = mx + c where m is the slope and c is the y intercept.
Slope =
Slope (taken from points (0, 4) and (1, 7)) =
= 3
y-intercept = 4
Equation: y = 3x + 4
$150<= $5.50x+$50
<= is less than or equal too
the most she can invite to her birthday is 18 people :)
Answer:
The larger sample sizes gives a narrower confidence interval
Step-by-step explanation:
The larger sample sizes gives a narrower confidence interval, that is, a more "precise" estimation of the elections results.
In a confidence interval of proportions, we have that the lower end is given by:
In which is the probability of a sucess, is a value from the Z table and n is the length of the sample.
The upper end is given by:
As n increases, the difference between U and L decreases. This means that the confidence interval gets narrower.