What are the null hypotheses for these decisions? a. A person comes to a company to interview for a job opening. The company has to decide whether to hire the person. 2 b. An inventor proposes a new...

What are the null hypotheses for these decisions? a. A person comes to a company to interview for a job opening. The company has to decide whether to hire the person.²

b. An inventor proposes a new way to wrap packages that he says will speed up the manufacturing process. Should the manufacturer adopt the new method?
³

c. A sales representative submits receipts from a recent business trip. Staff in the accounting department has to determine whether the claims are legitimate.⁴