Questions from Business Statistics

Q: How have stocks performed in the past? The following table presents

How have stocks performed in the past? The following table presents the data stored in Stock Performance and shows the performance of a broad measure of stocks (by percentage) for each decade from the...

Q: The file Movie Attendance contains the yearly movie attendance (in billions

The file Movie Attendance contains the yearly movie attendance (in billions) from 2001 through 2018. a. Construct a time-series plot for the movie attendance (in billions). b. What pattern, if any, is...

Q: The Super Bowl is a big viewing event watched by close to

The Super Bowl is a big viewing event watched by close to 200 million Americans that is also a big event for advertisers. The file Super Bowl Ad Costs contains the average cost for 30-second ads that...

Q: Even though there has been an abundance of digital and analytics transformations

Even though there has been an abundance of digital and analytics transformations occurring across the business landscape in recent years, few companies report achieving successful results. What has be...

Q: The data in New Home Sales include the median sales price of

The data in New Home Sales include the median sales price of new single-family houses sold in the United States recorded at the end of each month from January 2000 through December 2017. Source: Data...

Q: The file Natural Gas includes the monthly average commercial price for natural

The file Natural Gas includes the monthly average commercial price for natural gas (dollars per thousand cubic feet) in the United States from January 1, 2008, to December 2018. Source: Data extracted...

Q: The following table, stored in Smartphone Sales, represents the quarterly

The following table, stored in Smartphone Sales, represents the quarterly market share (percentage) of smartphones, by type, for the third quarter of 2017 through the third quarter of 2018, as reporte...

Q: Given the results from Problem 11.20, a.

Given the results from Problem 11.20, a. at the 0.05 level of significance, is there an effect due to factor A? b. at the 0.05 level of significance, is there an effect due to factor B? c. at the 0.05...

Q: A sample of companies were asked three questions about analytics and artificial

A sample of companies were asked three questions about analytics and artificial intelligence usage and their answers stored in Business Analytics, Machine Learning and Self-Learning Robots. The follow...

Q: The following table, stored in, contains the 2018 sources of

The following table, stored in, contains the 2018 sources of electricity in the United States as reported by the Energy Information Administration. What conclusions can you reach about sources of ener...