If the Amount of Petrol Purchased Per Car at a Large

question 106

True/False

If the amount of petrol purchased per car at a large petrol station has a population mean of $15 and a population standard deviation of $4 and a random sample of 4 cars is selected,there is approximately a 68.26% chance that the sample mean will be between $13 and $17.

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Definitions:

Ostream

An output stream in C++, associated with high-level output operations to a variety of destinations including files, devices, or consoles.

Fstream

A header file in C++ that provides facilities for file handling through streams for file input/output operations.

File Stream

An abstraction in programming that represents a sequence of data being read from or written to a file.

FILE

An abstract data type in C and C++ for representing files and their operations, such as reading and writing data.