A researcher's design of an experiment is to make clearer already known
facts, or to discover new knowledge.
The responses are:
- Experimental units: <u>The customers</u>
- Explanatory variable: The <u>type of checkout used</u>
- Treatments: The <u>checkout to which a customer is sent to</u>
- Response variable: The <u>time it takes to check out</u>
Reasons:
The aim of the experiment is to determine if self-check out is faster than
regular checkout.
The number of customers sent to one of the checkout options = 100
The experimental units are the subject of the experimental treatment.
Therefore;
- <u>The experimental units are the customers</u> that are sent to a particular checkout.
An explanatory variable is the manipulated variable in an experiment. An explanatory variable is known as an independent variable.
- In the question, <u>the explanatory variable are the type of checkout</u>; Self-checkout or regular checkout
Treatments are the levels of the explanatory variable available in the experiment, or a combination of the levels. The treatment is what the experimental units are subjected to.
- In the question, <u>the treatment are the use of self-checkout or regular checkout</u>.
The response variable, is also known as the dependent variable, that depends on the treatment an experimental unit is subjected to.
- <u>The response variable in the question is the times it takes to checkout</u>
Learn more about experimental design here:
brainly.com/question/2118275
Answer: It wants you to find the "Lateral Surface Area" or as I call it the area of the dimensional figures sides.
Step-by-step explanation:
Answer:
or 
Step-by-step explanation:
Look at photo attached.
Hope this helpsʕ•ᴥ•ʔ
The revenue is given by the unit price * number of units.
Profit = Revenue - Cost = 200x - 500,000 - 80x - 0.003x^2 = 120x - 500,000 - 0.003x^2
For profit to be maximum dP/dx = 0
120 - 0.006x = 0
x = 120/0.006 = 20,000
Therefore, to maximize profit, the firm should produce 20,000 penicillin.
Answer:
the expression would be: 18x-12y
Step-by-step explanation:
