Two Coffee-Vending Machines Are Studied to Determine Whether They Distribute

question 17

Multiple Choice

Two coffee-vending machines are studied to determine whether they distribute the same amounts.Samples are taken and the number of ounces is recorded for each machine. $$\begin{array} { c c } \text { Machine A } & \text { Machine B } \\\hline 6.10 & 5.99 \\5.95 & 6.01 \\5.98 & 5.98 \\6.01 & 5.96 \\6.00 & 6.08 \\5.95 & 5.89 \\6.02 & 6.01 \\6.04 & 6.00 \\5.99 & 5.97 \\6.06 & 6.00\end{array}$$
What is the appropriate null hypothesis for the claim that they distribute the same amount of coffee?

• A)H₀: ?_DA ? ?_DB
• B)H₀: ?_DA = ?_DB
• C)H₀: ?_DA ? ?_DB
• D)H₀: ?_DA ? ?_DB

Understand the concept of economic profits and losses in different market structures.

Recognize the factors leading to the emergence of monopolies and how they can maintain their monopoly power.

Identify the role of barriers to entry in maintaining a firm's market power.

Discuss the impact of economies of scale on market structures and firm size.