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13.2.024.S. MY NOTES PRACTICE ANOTHER In a study of memory recall, 8 students from a large psychology class were selected at random and given
13.2.024.S. MY NOTES PRACTICE ANOTHER In a study of memory recall, 8 students from a large psychology class were selected at random and given 10 minutes to memorize a list of 20 nonsense words. Each was asked to list as many of the words as they could remember both 1 hour and 24 hours later. The data are given in the accompanying table. Subject 1 2 3 4 5 6 7 8 1 hr later 44 14 12 18 7 11 9 16 1 15 24 hr later 10 4 13 6 9 6 12 12 I USE SALT Construct a 90% confidence interval for the difference in mean number of words remembered after 1 hour and after 24 hours. (Use 1 Hour Later - 24 Hours Later. Enter your answer using interval notation. Round your numerical values to four decimal places.) Interpret the interval. We are 90% confident 0 that the true difference in mean number of words recalled between 1 hour later and 24 hours later falls within interval suggest the mean number of words is higher 1 hour later this interval. The bounds of the
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