A Strobe Photograph Shows Equally-Spaced Images of a Car Moving

question 10

Multiple Choice

A strobe photograph shows equally-spaced images of a car moving along a straight road.If the time intervals between images is constant,which of the following cannot be positive?

• A)the speed of the car
• B)the average velocity of the car
• C)the acceleration of the car
• D)the direction of motion of the car

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Definitions:

Alpha

In statistics, the threshold of probability at which the null hypothesis is rejected, often set at 0.05 or 5%.

Type I Error

The error that occurs in hypothesis testing when a true null hypothesis is incorrectly rejected, falsely indicating a significant effect or difference.

Alpha

A threshold value used in hypothesis testing that defines the maximum probability of committing a Type I error.

Type I Error

The erroneous dismissal of a true null hypothesis, often referred to as a "false positive."