Crossbill Finches Have Beaks That Overlap with the Top Beak

question 2

Multiple Choice

Crossbill finches have beaks that overlap with the top beak to one side or the other of the lower beak. Most populations have 50:50 ratios of "right-handed" and "left-handed" beaks, and the handedness of the beaks is thought to be randomly determined, so we expect to see equal numbers of right-handed and left-handed finches. Consider a survey of 140 crossbill finches, which reveals 84 with right beaks and 56 with left beaks. What is the P-value of a two-sided binomial test using the normal distribution to approximate the binomial?

• A) 0.015
• B) 0.020
• C) 0.023
• D) 0.033

Recognize the role and impact of the Federal Reserve's actions on banks' reserves and the broader financial market.

Describe the concept of asymmetric information in financial markets and its consequences for lending.

Understand the significance of diversification in banking and the consequences of not diversifying.

Explain the operation of the federal funds market and the impact of interbank lending on the financial system.