Exhibit 10-11
an Insurance Company Selected Samples of Clients Under $\le$

question 98

Multiple Choice

Exhibit 10-11
An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. The results are shown below. We are interested in determining if the accident proportions differ between the two age groups.
-Refer to Exhibit 10-11 and let p_u represent the proportion under and po the proportion over the age of 18. The null hypothesis is

• A)p_u - p_o \(\le\) 0
• B)p_u - p_o \(\ge\)0
• C)p_u - p_o \(\neq\) 0
• D)p_u - p_o = 0

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Definitions:

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A surgical procedure that creates an opening (stoma) from the large intestine to the surface of the abdomen to divert waste from the digestive system.