Marketing analysts have determined that a particular advertising campaign should make at least 20% of the adult population aware of the advertised product. After a recent campaign, 400 adults were asked whether or not they had seen the ad and were aware of the new product. What is the standard error of p¯? What is the probability that the sample proportion will be less than 15%? What is the probability that the sample proportion will be between 21.25% and 16.25%? What is the probability that the sample proportion will be more than 22.5%?
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.
Marketing analysts have determined that a particular advertising campaign should make at least 20% of the adult population aware of the advertised product. After a recent campaign, 400 adults were asked whether or not they had seen the ad and were aware of the new product.
- What is the standard error of p¯?
- What is the probability that the sample proportion will be less than 15%?
- What is the probability that the sample proportion will be between 21.25% and 16.25%?
- What is the probability that the sample proportion will be more than 22.5%?
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