A random sample of 60 elements was selected from a population of size 400. The sample proportion 
a.Estimate the standard error of the proportion.
b.Develop an approximate 95% confidence interval for the population proportion.
Definitions:
F Distribution
A probability distribution that is used in ANOVA tests, describing the ratio of variances between and within samples.
Test Statistic
A value computed from sample data during a hypothesis test used to decide whether to reject the null hypothesis.
F-Distribution
A probability distribution used in analysis of variance, concerned with variability between and within data samples.
Positively Skewed
A distribution shape where most values are concentrated on the left side, with the tail extending to the right, indicating that the mean and median are greater than the mode.
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