Observations of 80 litters, each containing 3 rabbits, reveal the following frequency distribution of the number of

Question:

Observations of 80 litters, each containing 3 rabbits, reveal the following frequency of the number of male rabbits per litter.

Under the model of Bernoulli trials for the sex of rabbits, the probability distribution of the number of males per litter should be binomial with 3 trials and p = probability of a male birth. From these data, the parameter p is estimated as (b) Express the x2 statistic as

Observations of 80 litters, each containing 3 rabbits, reveal the

(a) Using the binomial table for three trials and p = .4, determine the cell probabilities.
(b) Perform the x2 test for goodness of fit. (In deter-mining the d.f, note that one parameter has been estimated from the data.)

Distribution
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