Questions from Business Statistics

Q: Do people better remember what they learned if they are in the

Do people better remember what they learned if they are in the same physical space where they first learned it? The authors of the paper “the Dynamics of memory: contextDependent Updating” (Learning &...

Q: The article “the Largest Last Supper: Depictions of food Portions

The article “the Largest Last Supper: Depictions of food Portions and Plate Size increase over the millennium” (International Journal of Obesity [2010]: 1–2) describes a study in which each painting i...

Q: For the study described in the previous exercise, answer the following

For the study described in the previous exercise, answer the following questions. a. The original sample consisted of 52 paintings. These paintings were then divided into two samples consisting of 30...

Q: Consider the population that consists of all employees of a large computer

Consider the population that consists of all employees of a large computer manufacturer. a. Give an example of a question about this population that could be answered by collecting data and using it...

Q: Fans of professional soccer are probably aware that players sometimes fake injuries

Fans of professional soccer are probably aware that players sometimes fake injuries (called dives or flops). But how common is this practice? The articles “a field guide to fakers and floppers” (The W...

Q: “Want to lose more fat? Skip breakfast before workout”

“Want to lose more fat? Skip breakfast before workout” (The Tribune, June 4, 2010) is the headline of a newspaper article describing a study comparing men who did endurance training without eating bef...

Q: For the study described in the previous exercise, answer the following

For the study described in the previous exercise, answer the following questions. a. What is the population of interest? b. What claim was tested? c. What additional information would you want befo...

Q: Suppose that a study was carried out in which each person in

Suppose that a study was carried out in which each person in a random sample of students at a particular college was asked how much money he or she spent on textbooks for the current semester. Would y...

Q: When you collect data to learn about a population, why do

When you collect data to learn about a population, why do you worry about whether the data collected are categorical or numerical?

Q: Consider the four key questions that guide the choice of an inference

Consider the four key questions that guide the choice of an inference method. Two of these questions are T: Type of data. One variable or two? Categorical or numerical? N: Number of samples or trea...