only looking for mathematical solution, not interested in excel work
you are given that all conditions for put-call parity are satisfied. the following are current option prices on a certain computer company, as of june 9, 2013:
• for the exercise price of $400, date of expiration june 28, 2012, the call premium is $40.05, and the put premium is $1.43.
• for the exercise price of $410, date of expiration june 28, 2012, the call premium is $31.05, and the put premium is $2.40.
find the continuously compounded annual risk-free interest rate. assume 365 days in a year

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test