Answer:
166.8 pounds.
Step-by-step explanation:
Let b be the number of batches baked and f be the total weight of flour.
We have been given that a cupcake factory has already used 22.8 pounds of flour today.
They are now making cupcakes that require 8 pounds per batch, so the weight of flour used in b batches will be 8b.
The equation representing the total weight of used flour is given as:
To find the total weight of flour used, when 18 batches are baked we will substitute b = 18 in our given equation.
Therefore, the total weight of flour used in baking 18 batches will be 166.8 pounds.
The common ration to this problem is 3/5
Answer:
Minimum number of truck drivers that the statistician should sample in these southern states in order to achieve the desired accuracy is 1309.
Step-by-step explanation:
Consider the provided information.
The estimate accurate to within 3%
Therefore, e = 0.03
The true proportion with 97% confidence.
For 97% CI critical Z = 2.1701
p = 1/2 = 0.5
We can calculate the sample size by using the formula.

Substitute the respective values



Hence, minimum number of truck drivers that the statistician should sample in these southern states in order to achieve the desired accuracy is 1309.