A Group of Statistics Students Decided to Conduct a Survey

question 13

Multiple Choice

A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size if the error is to be less than ½ hour with a 99% level of confidence?

• A) 196
• B) 240
• C) 15
• D) 16

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Definitions:

Upper Pane

A term that might refer to the top section of a user interface within a software application, where specific types of information or controls might be displayed.

Field Names

The labels or identifiers assigned to fields within a database or form, used for referencing and organizing data.

Outer Join

A type of SQL join that returns a result set that includes all rows from one of the two tables being joined, together with the matching rows from the other table. If there is no match, the result is still returned with NULL values for the non-matching table.

Relationships Window

A visual representation in database software that shows how tables are related to each other through their keys.