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Education for Fitting models MCQ

What does the assumption of independence mean?

Answer

Correct Answer: This assumption means that the errors in your model are not related to each other.

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‘Children can learn a second language differently before the age of 7 than after.’ Is this statement:

Answer

Correct Answer: A two-tailed hypothesis

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Which of the following is true about a 95% confidence interval of the mean:

Answer

Correct Answer: 95 out of 100 confidence intervals will contain the population mean.

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Complete the following sentence: A large standard deviation (relative to the value of the mean itself) (Hint: The standard deviation is a measure of the dispersion or spread of data around the mean.)

Answer

Correct Answer: Indicates that the data points are distant from the mean (i.e. the mean is a poor fit of the data).

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Complete the following sentence: A small standard deviation (relative to the value of the mean itself) (Hint: The standard deviation is a measure of the dispersion or spread of data around the mean.)

Answer

Correct Answer: Indicates that data points are close to the mean (i.e. the mean is a good fit of the data).

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