9 the following is the sampling distribution showing sample proportion
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9. The following is the sampling distribution showing sample proportions from samples of size 40 from a
population.
50
40
30
20
10
0.15 0.20
0.25
0.30
0.35
0.40
0.50
0.55
0.60
0.65
a. Estimate the value of the population parameter. Label it with the proper notation.
b. Estimate the standard error. Show your work.