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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...

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
solutions:
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

solutions:
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

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