A Researcher Is Testing a Hypothesis of a Single Mean $\alpha$

question 11

Multiple Choice

A researcher is testing a hypothesis of a single mean. The critical z value for $\alpha$ =.05 and an one?tailed test is 1.645. The test statistic from sample data is 1.13. The decision made by the researcher based on this information is to ___ the null hypothesis.

• A) reject
• B) not reject
• C) redefine
• D) change the alternate hypothesis into
• E) restate the null hypothesis

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Definitions:

Hygroscopic

A characteristic of brake fluid by which it absorbs moisture. Over time, this can damage the hydraulic system components.

Proportioning Valve

A valve in a vehicle's brake system that regulates the pressure between the front and rear brakes to prevent rear wheel lockup during braking.

Metering Valve

A type of combination brake system valve that introduces a slight delay in the application of the front disc brakes in relation to the rear drum brakes. This allows more balanced braking and better vehicle control. See alsoproportioning valves.

Junction

A point where two or more roads or electrical circuits meet or cross.