If your supervisor decides that they want to be 95% confident in the results of a survey were the population proportion is 0.21 and within ±0.05, how large of a sample do you need to complete the study? Using the question above, if your supervisor changes her mind and now wants a margin of error equal to 0.03 at 95% confidence level, your sample size would be? I only need the second part please. I'm getting two different answers and need to double check if it's 618.50 or 708.1349
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
If your supervisor decides that they want to be 95% confident in the results of a survey were the population proportion is 0.21 and within ±0.05, how large of a sample do you need to complete the study?
Using the question above, if your supervisor changes her mind and now wants a margin of error equal to 0.03 at 95% confidence level, your sample size would be?
I only need the second part please. I'm getting two different answers and need to double check if it's 618.50 or 708.1349
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