Amy enjoys eating jelly sandwiches and drinking orange juice. She is particular about proportions, though: For every jelly sandwich she eats, she must drink exactly one glass of orange juice, and vice versa. Amy can purchase the jelly for her sandwiches in two jar sizes: 20 ounces and 40 ounces. Amy cares only about the total amount of jelly she has available and not at all about the jar size. In other words, she's just as happy with two 20-ounce jars as she is with one 40-ounce jar. In this scenario, 20-ounce jars of jelly and 40-ounce jars of jelly areperfect substitutes:

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.

Which alternative accounting method allows farmers to record expenses and incomes in the year in which they sell their yield? gaap allows for the method, which permits farmers to subtract the expenses of producing the crop in the year in which they sell the yield and earn the revenue.

Eliza works for a consumer agency educating young people about advertisements. instead of teaching students to carefully read advertisement claims, she encourages them to develop a strong sense of self and to keep their life goals and dreams separate from commercial products. why might eliza's advice make sense?