In Estimating the Standard Deviation in the Population for the Formula

question 50

Multiple Choice

In estimating the standard deviation in the population for the formula for calculating the sample size for estimating a mean,we can use some prior knowledge about the

• A)sample to estimate our standard deviation.
• B)population,undertake a pilot study or estimate the range,and divide by 10.
• C)population,undertake a pilot study or estimate the range,and divide by 6.
• D)Either of the two;b or c would work.
• E)None of the above;if you do not have the actual standard deviation,you cannot use the formula.

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Definitions:

Randomly Assigned

A process in experimental design where participants are allocated to different groups without any biases or predetermined patterns.

Knowledgeable

Possessing or showing a great deal of information, awareness, or understanding about specific subjects or topics.

Actor-Observer Effect

A cognitive bias in which people tend to attribute their own actions to situational factors, while attributing others' actions to their character or disposition.

Traffic

The movement of vehicles, ships, persons, or animals through an area, or the volume of this movement in a specified pathway or domain, such as internet traffic.