An online recruiting firm reports that the average annual st…

An online recruiting firm reports that the average annual starting salary for graduates with bachelor’s degrees in business in the United States was $60,000 in 2022. The results for a sample of 100 business majors receiving a bachelor’s degree who took jobs in Boston showed a mean starting salary of $62,000 with a sample standard deviation of $5,000 in 2022. Conduct a hypothesis test at 0.03 level of significance to determine whether the mean starting salary for business majors who took jobs in Boston is different from the mean starting salary nationwide in 2022. What kind of Hypothesis Test is this one?

Test the following argument for validity. If it is invalid,…

Test the following argument for validity. If it is invalid, then create a counterexample chart. If it is valid, then construct a formal proof.  ~p r → p  ~r → (z ∧ s)z    You might want to copy and paste one of these: Statements        Reasons1)                  1) 2)                  2)  (you can continue your own numbers) Or  p r s z

Use the formula for the number of subsets of a set with n el…

Use the formula for the number of subsets of a set with n elements to solve the problem. A village has 4 fire engines. If a radio dispatcher receives a call, depending on the nature of the situation, no engines, one engine, two engines, three engines, or all four engines can be sent to a fire. How many options does the dispatcher have for sending the fire engines to the scene of the caller? (Hint: Consider every option to be a subset.)