Unformatted text preview: t likely to be the cause of
this variance. Some other factor is
causing some coin combinations to come up more than would be expected. Maybe our coins are
not balanced and are weighted to one side more than another.
So what value of Probability (p) is acceptable in scientific research?
Biologists generally accept p=.05 as the cutoff for accepting or rejecting a hypothesis. If the
difference between your observed data and your expected data would occur due to chance alone
fewer than 1 time in 20 (p = 0.05) then the acceptability of your hypothesis may be questioned.
Biologists consider a p value of .05 or less to be a “statistically significant” difference.
A probability of more than 0.05 by no means proves that the hypothesis from which you worked
is correct but merely tells you that from a statistical standpoint that it could be correct, and that
the variation from your expected results is probably due to random chance alone. Furthermore, a
probability of less than 0.05 does not prove that a hypothesis is incorrect; it merely suggests that
you have reason to doubt the correctness or completeness of one or more of th...
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