Solved

You Can Visit the Official Website of Any Large Restaurant

question 32

Multiple Choice

You can visit the official website of any large restaurant chain to examine the nutritional data for menu items. For fast-food restaurants, many menu items are high in fat, so most of their calorie content comes from fat (rather than from carbohydrates or protein) . Here we investigate the relationship between the amount of fat in a menu item (in grams) and the number of calories. To predict the number of calories in a menu item given its fat content, we use the simple linear regression model calories =  +  (fat) , where the deviations are assumed to be independent and Normally distributed, with mean 0 and standard deviation . At one major fast-food restaurant chain, there were 26 items listed under the heading of "Sandwiches" (which includes hamburgers, chicken sandwiches, and other sandwich selections) on the menu. We fit the model to the data using the method of least squares. We treat these 26 menu items (which came from one restaurant) as a sample from the population of all sandwich items at all fast-food restaurants. This assumption is probably dubious. The following results were obtained from software. r² = 0.846
S = 43.5747 The slope of the least-squares regression line is:

Definitions:

Operating Activities

Operating activities relate to the primary revenue-generating activities of a business, influencing its net income and cash flows from operations.

Prepaid Expenses

Prepaid expenses represent payments made in advance for goods or services to be received in the future, recorded as assets on the balance sheet until they are consumed or used.

Operating Activities

Transactions and events related to the primary business activities, such as selling products or services, which are reflected in the cash flows.

Investing Activities

Transactions involving the purchase and sale of long-term assets and other investments, not including cash equivalents.