Xavier, a recent college graduate, is thinking of investing in a home health care business. he believes this will be a profitable venture because of the increasing number of people in the u. s. that will be over 60 in the near future and more likely to need this type of service. this accurately describes a demographic trend that will affect his business choice.

Acompany is developing a new high­performance wax for cross country ski racing. in order to justify the price marketingwants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less thanseconds for a former olympic champion. to test it, the champion will ski the course 8 times. the champion's times(selected at random) are 59.9 61.9 48.8 52.2 46.6 45.3 50.6 and 41.1 seconds to complete the test course. complete parts a and b below. a) should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are metfor the sample. assume=0.05. what are the null and alternative hypotheses? choose the correct answer below. b) suppose they decide not to market the wax after the test, but it turns out that the wax really does lower the champion'saverage time to less thanseconds. what kind of error have they made? explain the impact to the company of such anerror.

Stock market crashes happen when the value of most of the stocks in the stock market increase at the same time. question 10 options: true false

You decided to charge $100 for your new computer game, but people are not buying it. what could you do to encourage people to buy your game?