Table 2.

Statistical analysis of clonality assuming a Poisson distribution for 55 ears injected with RDlac at stages 18–28

Sensory clones per earObserved (O)Expected (E)
02410.5
11117.4
21014.4
≥31012.7
• This analysis tested the hypothesis that the presumed clones did result from single infection events following the Poisson distribution (see Table 1 for statistical procedure). These data are inconsistent with the hypothesis for 2 df using the χ2 test for goodness of fit (χ2 = 21.6, 0.001 > p); therefore we must reject the hypothesis.