Final answer:
The best point estimate for the binomial proportion, p, is 0.405.
Step-by-step explanation:
The best point estimate for the binomial proportion, p, can be found by dividing the number of successes, x, by the sample size, n. In this case, x = 162 and n = 400. So, the point estimate for p is:
p' = x/n = 162/400 = 0.405
The best point estimate for the binomial proportion, p, is 0.405.