The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Round your answers to two decimal places.) First Score 75 87 60 75 98 80 68 84 47 72 Second Score 73 89 53 74 93 79 71 79 54 71   The answer I got for this is typed in, but it is wrong. (b) Set a 95% confidence interval for ?. lower limit     .76 wrong answer upper limit     1.16 wrong answer

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