A health club has 6 tennis courts. the owner hypothesizes that his patrons have no preference for a particular court. he observes how many people play on each court on a particular day. compute the expected value for the data shown below
court number of players
1 9
2 10
3 11
4 6
5 14
6 7

a)4.37 b)10.3 c)9.5 d)5.72

A biologist had mice and rats run through a maze and recorded the number that finished the maze successfully and the number that did not. this table lists the results of the study. at a=.05, test the claim that the rodent type and the success of finishing the maze are related.
mice rats
finished 30 22
did not finish 36 13

a)there is evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 9.488>1.393
b)there is not evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 2.773<3.841
c)there is not evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 1.393<9.488
d)there is evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 3.841>2.773