In an experiment to learn if substance M can help restore memory, the brains of 20 rats were treated to damage their memories. The rats were trained to run a maze. After a day, 10 rats were given M, and sevenof them succeeded in the maze; only three of the 10 control rats were successful. The z test for "no difference" against "a higher proportion of the M group succeeds" has what values for the z-statistic and P-value? (Round your z-value to two decimal places and your P-value to three decimal places.
You may need to use the appropriate Appendix Table to answer this question.
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