This assignment builds upon your work in Units 1, 2, and 3.

Chapter 12 shows an overview of how data can be described using statistics. Descriptive statistics enables you to describe and compare the data values associated with the variables involved in answering a business question or resolving a business problem.

After analyzing the qualitative data using thematic analysis (see Unit 3), the Marketing Vice President (VP) discovered that the most recurring theme in participant responses was the length of time that the smartphone battery holds its charge. The Marketing VP knows that her company's current battery supplier (Supplier A) has a battery that lasts approximately 10 hours. The marketing team conducted some exploratory online research and discovered that the average smartphone with continuous use results in a battery charge lasting 9 hours. The company's Supply Chain Manager is recommending that the company switch to another supplier (Supplier B) that claims that their battery lasts 11 hours on a charge when the smartphone is in continuous use. It is important that the Marketing VP confirm whether Supplier B's claim is true because Supplier B's battery is more expensive than Supplier A's battery. The team ran tests on 10 Supplier A batteries and 10 Supplier B batteries to see how long each phone's charge lasted when the phone is in continuous use. The team then analyzed the collected data using descriptive statistical analysis. See the Descriptive Statistics results below.

Objective

Confirm whether either Supplier A's or Supplier B's batteries last 11 hours between charges.