Sate the null and alternative hypotheses for each of the following: a. You are testing that the mean speed of your cable Internet connection is more than three Megabits per second. b. The mean entry level salary of an employee at a company is $58,000. You believe it is higher for IT professionals in the company. c. A sociologist claims the probability that a person picked at random in Times Square in New York City is visiting the area is 0.83. You want to test to see if the proportion is actually less. d. In a population of fish, approximately 42% are female. A test is conducted to see if, in fact, the proportion is less.