"In surveying a simple random sample of 1000 employed adults, we found that 450 individuals felt they were underpaid by at least $3000. Based on these results, we have 95% confidence that the proportion of the population of employed adults who share this sentiment is between 0.419 and 0.481." For this summary statement, identify the
a. point estimate of the population proportion.
b. confidence interval estimate for the population proportion.
c. confidence level and the confidence coefficient.
d. accuracy of the sample result.