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At Brighton Middle School, Mr. Yule asked 50 randomly selected students from each grade level about their favorite subject, and 12 chose science. He used this data to draw the inference that about 25% of middle school students will indicate science is their favorite subject. If there are 200 students all together, did he make a reasonable inference? No, Mr. Yule’s sample is biased and too small to be representative of the population. Yes, Mr. Yule’s sample is small and biased, so it is representative of the population. No, Mr. Yule’s percentage is too large. He should have used 6%. Yes, Mr. Yule’s sample is random and representative of the population.

Answer No, Mr. Yule’s sample is biased and too small to be representative of the population. Mr. Yule’s inference is based on a sample of 50 randomly selected students from each grade level, which is not enough to draw a

Binomial Distribution

A binomial distribution is a discrete probability distribution that shows how many times a given event will occur in a fixed number of trials. The event…

Bayesian Efficiency

Bayesian efficiency is a statistical concept that refers to the ability to make accurate estimates of parameters or quantities using the smallest possib…

Cluster Analysis

Cluster analysis is a marketing research technique that groups consumers with similar characteristics together. This allows businesses to better targe…

Cluster Sampling

Cluster sampling is a method of sampling that involves dividing the population into groups, or clusters, and then selecting a random sample from each …

Audience Measurement

Audience Measurement refers to the process and/or methodologies used to collect data on media audiences. This data is then used to provide insights on…