In: Statistics and Probability
Think of something you’d like to build a confidence interval for, whether it be a population mean, proportion, or standard deviation. Find some reliable data online and compute a 95% confidence interval for that population parameter. Provide a reference your data and interpret your results.
suppose we have two city ( city A and city B) and we want to study about difference in proportion of people in city A and city B who support to a candidate who is nominated for president election.
n1= sample size ( for city A).
X1 = number of people who support to condidate from city A.
P1= proportion of people who support to condidate from city A
n2 = sample size ( for city B)
X2=number of people who support to condidate from city B.
P2= proportion of people who support to condidate from city B.
People of city A and city B will be population 1 and population 2 respectively .