State the null and alternative hypotheses for the following research questions. State all hypotheses twice: first in words and then in symbolic form. a) Do girls play less roughly than boys? b) Are...

State the null and alternative hypotheses for the following research questions. State all hypotheses twice: first in words and then in symbolic form.

a) Do girls play less roughly than boys?

b) Are people living in colder climates more susceptible to catching colds and flu than those living in warmer climates?

c) Do people above the age of 50 have a different metabolism from younger people? d) Are men violent?

e) Do extremely wealthy people and less wealthy people have different attitudes towards poor people?

f) Are women sensitive?