Given the following information, calculate the degrees of freedom that should be used in the pooled-variance t test

A buyer accepts a general warranty deed from a seller, believing that the seller is the sole owner of the property. The buyer later finds out that the seller is only a co-owner. Has a covenant in the general warranty deed been violated?

A. No, the only covenant in a general warranty deed promises that the previous owner didn't encumber the property B. No, the principle of caveat emptor controls matters concerning a deed C. Yes, there is a covenant providing equitable title D. Yes, there is a covenant providing marketable title

Consider a two-period binomial model, where each period is 6 months. Assume the stock price is $75.00, ? = 0.35, and r = 0.05. An American call option with a strike price of $80 would be exercised early at what dividend yield?

A) 5.0% B) 7.0% C) 9.0% D) Never exercise early