The number of absences recorded from a lecture that met at 8 a.m. on Mondays and Thursdays
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Do these data show a randomness about the median value at a = 0.05 ? Complete this test by using (a) critical values from Table 14 in Appendix B and (b) the standard normal distribution.
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nlabsences) 5 16 69 18 1 16 21 14 17 12 14 10 6 8 12 13 4 5 5 6 7 18 26 6 5 2
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