Question: A sociologist claims that the success of students in college
A sociologist claims that the success of students in college (measured by their GPA) is related to their family’s income. For a sample of 20 students, the correlation coefficient is 0.40. Using the 0.01 significance level, can we conclude that there is a positive correlation between the variables?
Answer to relevant QuestionsFor a sample of 32 large U.S. cities, the correlation between the mean number of square feet per office worker and the mean monthly rental rate in the central business district is 2.363. At the .05 significance level, can we ...Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is the length of ...Given the following regression output,Answer the following questions:a. Write the regression equation.b. If x1 is 4 and x2 is 11, what is the expected or predicted value of the dependent variable?c. How large is the sample? ...The district manager of Jasons, a large discount electronics chain, is investigating why certain stores in her region are performing better than others. She believes that three factors are related to total sales: the number ...Many regions along the coast in North and South Carolina and Georgia have experienced rapid population growth over the last 10 years. It is expected that the growth will continue over the next 10 years. This has motivated ...
Post your question