The Graph Below Shows the Yearly Incidence of Viral Hepatitis

question 9

Multiple Choice

The graph below shows the yearly incidence of viral hepatitis per 100,000 population from 1982-2012 in the United States (US) . During this period, the total population in the US continued to increase, as shown in the table below: At any given time point, the number of individuals at risk for hepatitis infection is assumed to be equal to the total US population.  Based on these data, which of the following is most likely to be true?

• A)After 2006, hepatitis B prevalence surpassed hepatitis A and hepatitis C prevalence
• B)In 1987, there were as many individuals with hepatitis A as with hepatitis B in the US
• C)In 1989, there were more individuals with hepatitis A than with hepatitis B in the US
• D)In 1997, there were more new cases of hepatitis A than of hepatitis B and C combined
• E)The number of new cases of hepatitis A diagnosed in 1982 and 1998 were exactly the same

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Definitions:

Relevant Range

The range of activity within which the assumptions about fixed and variable cost behaviors hold true.

High-Low Method

An accounting method used to estimate the fixed and variable components of a cost based on the highest and lowest levels of activity.

Variable Maintenance Cost

Costs that change in proportion to the operational activity of a company, such as repairs and maintenance expenses that vary with usage.

Mixed Cost

A cost containing both variable and fixed cost elements, changing in total with activity level but not proportionately.