A stratified simple random sample has been taken with the following results. 
a.Determine the point estimator of the population proportion.
b.Estimate the standard error of the population proportion.
c.Develop an approximate 95% confidence interval for the population proportion.
Definitions:
Pollution Free
An attribute of products, services, or practices that do not release harmful contaminants into the environment.
Clean Town
An initiative or effort to maintain a town or city in an environmentally friendly and litter-free condition.
Housing Prices
The amount of money required to purchase residential properties, influenced by factors such as location, demand, and economic conditions.
Indifference Principle
The indifference principle suggests that individuals have no preference between two or more equally satisfying options, reflecting a state of utility and choice.
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