The Figure Shows a Top View of a Ball on the End

question 50

Multiple Choice

The figure shows a top view of a ball on the end of a string traveling counterclockwise in a circular path. Assume that air resistance is negligible. The free-body diagram that best represents the acceleration of the ball is

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

One-tailed Test

A statistical test where the region of rejection is on only one side of the sampling distribution.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it is a threshold used to determine the critical region for statistical significance testing.

Test Statistic

A figure determined from data samples, which is used during a hypothesis test to evaluate whether to refuse the null hypothesis.

Type I Error

An erroneous denial of a valid null hypothesis, commonly called a "false positive."