Exhibit 10

question 86

Multiple Choice

Exhibit 10.11.The student senate at a local university is about to hold elections.A representative from the women's sports program and a representative from the men's sports program must both be elected.Two candidates,an incumbent and a challenger,are vying for each position and early polling results are presented next.A hypothesis test must be performed to determine whether the percentages of supporting votes are different between the two incumbent candidates.In a sample of 100 voters,67 said that they would vote for the women's incumbent candidate.In a separate sample of 100 voters,55 said they would vote for the men's incumbent candidate.Let p₁ and p₂ be the proportions of supporting votes for the incumbent candidates representing women's and men's sports programs,respectively. Refer to Exhibit 10.11.What type of a hypothesis test must be performed to determine whether the percentages of supporting votes are different between the two incumbent candidates?

• A)A z test of two sample proportions with a zero hypothesized difference
• B)A t test of two population proportions with a zero hypothesized difference
• C)A z test of two population proportions with a zero hypothesized difference
• D)A t test of two population proportions with a non-zero hypothesized difference

---

Definitions:

Insight

The ability to gain an accurate and deep understanding of someone or something, often leading to a new perspective or solution.

Master Clock

A primary clock that coordinates and regulates the timing of biological rhythms and cycles in an organism.

Pineal Gland

A small endocrine gland in the vertebrate brain that produces the hormone melatonin, which regulates sleep patterns.

Egg Rolling Behavior

A behavioral adaptation seen in some bird species where eggs that have been displaced from the nest are rolled back to the nest by the parent.