Question: State the null and alternative hypotheses for each of the following potential research questions:

a. Does working 5 hours a day or more at a computer contribute to deteriorating eyesight?

b. Does placing babies in an incubator during infancy lead to claustrophobia in adult life?

c. Does placing plants in an office lead to fewer sick days?

d. For each of the above, a – c, explain the two types of errors that could be made, and the consequences of the errors.