On a Given Day, the Price of a Gallon of Milk

question 54

Multiple Choice

On a given day, the price of a gallon of milk had a mean price of $2.16 with a standard deviation of $0.07. A particular food store sold milk for $2.09/gallon. Interpret the z-score for this gas station.

• A) The milk price of this food store falls 1 standard deviation below the milk gas price of all food stores.
• B) The milk price of this food store falls 7 standard deviations above the mean milk price of all food stores.
• C) The milk price of this food store falls 1 standard deviation above the mean milk price of all food stores.
• D) The milk price of this food store falls 7 standard deviations below the mean milk price of all food stores.

---

Definitions:

Data.gov

An online portal that provides access to a wide range of datasets published by the United States government.

.sav File

A file extension used by SPSS (Statistical Package for the Social Sciences) to store data sets, including variables, cases, and their values.

.csv File

A file format (Comma-Separated Values) used to store tabular data such as numbers and text in a plain text form.

SPSS

Statistical software package used for data management, statistical analysis, and graphics, acronym for Statistical Package for the Social Sciences.