In a Simple Machine Which Has a Velocity Ratio of 8

question 1

Multiple Choice

In a simple machine which has a velocity ratio of 8 and the law giving the relationship between the effort E and load F is E = 0.2F + 0.25 N, the effort required to overcome friction is:

• A) 0.2 kN
• B) 0.25 kN
• C) 1.6 kN
• D) 4.0 kN

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Definitions:

Two-sided Test

A statistical test designed to determine if there is a significant difference between a parameter and a specific value, in either direction.

One-sided Test

A statistical test in which the alternative hypothesis specifies a direction of the test statistic, either greater than or less than a certain range.

Two-sided Test

A hypothesis test that allows for the exploration of relationships in both directions, testing for the possibility of an effect in either direction.

P-value

The likelihood of test results being as significantly extreme or more so than what was observed, on the pretext that the null hypothesis is correct.