A corporation administers an aptitude test to all new sales representatives. Management is interested in the possible relationship between test scores and the sales representatives' eventual success. The accompanying table records average weekly sales (in thousands of dollars) and aptitude test scores for a random sample of eight representatives. Construct a scatter plot with weekly sales as the dependent variable and test scores as the independent variable.
Answer to relevant QuestionsDoctors are interested in the possible relationship between the dosage of a medicine and the time required for a patient's recovery. The following table shows, for a sample of 10 patients, dosage levels (in grams) and ...A supervisor of a plant kept records of the time (in seconds) that employees needed to complete a particular task. The data are summarized as follows: a. Graph the data with a histogram. b. Discuss possible errors. In one region it was found that 28% of people with incomes less than $50,000 use the Internet; 48% of those with incomes between $50,000 to $74,999 use the Internet; and 70% of those with incomes of at least $75,000 use the ...A consumer goods company has been studying the effect of advertising on total profits. As part of this study, data on advertising expenditures (1,000s) and total sales (1,000s) were collected for a 5-month period and are as ...A supermarket developer has conducted a large study to determine alcohol preferences based on the type of vehicle typically driven to a shopping center. A random sample of 100 car drivers and a second random sample of 100 ...
Post your question