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3 Police trainees were seated in a darkened room facing a projector screen Ten different...

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3 Police trainees were seated in a darkened room facing a projector screen Ten different license planes were projected on the screen one at a time for 5 seconds each separated by 15 second intervals After the last 15 second interval the lights were turned on and the police trainees were asked to write down as many of the 10 license plate numbers as possible in any order at all A random sample of 10 trainees who took this test where then given a week long memory training course They were then retested The results are shown in the table below X Person a 1 pt What are the Ho and HA 1 2 3 4 5 6 7 8 9 10 After Training 6 8 6 7 5 9 8 6 5 4 Do these results provide evidence that the memory course improved the ability of the trainees to correctly identify license plates Use a 0 05 level of significance Use After Before X2 Before Training b 1 pt What is the P Value Round to 4 decimal places 4 7 5 5 8 7 6 5 4 2

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