Grandfather Clocks Are Designed So They Can Be Adjusted by Moving

question 84

Multiple Choice

Grandfather clocks are designed so they can be adjusted by moving the bob at the bottom of the pendulum up or down.Suppose you have a grandfather clock at home that runs fast.Which of the following adjustments of the bob would make it more accurate? (There could be more than one correct choice.)

• A)Raise the bob.
• B)Lower the bob.
• C)Add more mass to the bob.
• D)Remove some mass from the bob.
• E)Decrease the amplitude of swing by a small amount.

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Definitions:

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of the risk of making a Type I error.

Sample Mean

The average value of a sample, calculated by summing all observations and dividing by the number of observations in the sample.

Concert Tickets

Tickets issued for admission to a concert, serving as proof of payment and the right to entry.

Significance Level

A threshold used in hypothesis testing that determines the probability of rejecting the null hypothesis when it is actually true.