Nationally, 32% of adults have a tattoo. A researcher believes the proportion is higher in their city. In a sample of 250 city residents 90 have tattoos. What is the alternative hypothesis? 

Nationally, 32% of adults have a tattoo. A researcher believes the proportion is higher in their city. In a sample of 250 city residents, 90 have tattoos. Find the P-value. 

The mean pulse rate for adults is 70 beats per minute (bpm). A yoga instructor claims students who take their training for two months will have a lower pulse rate than this. A sample of 40 students after two months of training has a mean pulse rate of 68 bpm with a standard deviation of 4.5 bpm. Test at the

Suppose that in the coming year, you expect BP stock to have a volatility of 32% and a beta of 0.7, and Merck’s stock to have a volatility of 22% and a beta of 1.2.  The risk free interest rate is 5% and the market’s expected return is 14%. The cost of capital for a project with the same beta as BP’s stock is closest to:

Wyatt Oil issued $200 million in perpetual debt (at par) with an annual coupon of 7%. Wyatt will pay interest only on this debt. Wyatt’s marginal tax rate is expected to be 50% for the foreseeable future.  Wyatt’s annual interest tax shield and the present value of interest tax shield are close to _____ respectively:   

The number of protons in a Mg atom is

The ground state electron configuration for sulfur is

The mass of a nucleon is about

After a yellow solid is dissolved in water, the liquid appears to be uniformly yellow throughout. This yellow liquid is best classified as a(n)

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 3p5 is