One-Sample Z Test MCQ

One-Sample Z Test MCQ

 

1. Effect size is measure of the magnitude of difference between ____ groups, usually calculated as Cohen’s d

Answer

Correct Answer: Two

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2. In which mean is used to compare a sample mean in one sample z test?

Answer

Correct Answer: Population

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3. The sampling distribution is a distribution of ______ means based on random ______ of a fixed size from a ______.

Answer

Correct Answer: Sample; samples; population

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4. A parametric inferential statistical test of the null hypothesis for a single sample where the population variance is known is the ______.

Answer

Correct Answer: Z-test

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5. What is the critical value?

Answer

Correct Answer: The inner edge of the region of rejection

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6. What is the standard error of the mean for a distribution of scores where standard deviation for the population = 24 and the size of the sample = 144?

Answer

Correct Answer: 2.0

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7. If the obtained value is higher than the critical value, we ______.

Answer

Correct Answer: Accept the null hypothesis

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8. When can the z-test be used in statistical hypothesis testing?

Answer

Correct Answer: When the raw score population’s standard deviation is known

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9. The standard error of the mean will always be ______ the standard deviation for a distribution of individual scores.

Answer

Correct Answer: Smaller than

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10. What is the standard error of the mean for a distribution of scores where the standard deviation for the population = 15 and the size of the sample = 100?

Answer

Correct Answer: 1.5

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11. What is the purpose of the critical value?

Answer

Correct Answer: To determine the size of the region of rejection

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12. The standard deviation of the sampling distribution is called the ______.

Answer

Correct Answer: Standard error of the mean

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13. What is the standard error of the mean for a distribution of scores where standard deviation for the population = 50 and the size of the sample = 75?

Answer

Correct Answer: 5.77

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