The estimated standard error in the t statistic uses the ______ to estimate the ______ when the population variance is unknown

A. sample variance; population variance
B. population variance; sample variance
C. standard error; sample variance
D. degrees of freedom; sample size


Ans: A

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The Next Generation Science Standards focus on ____________________

Fill in the blank(s) with the appropriate word(s).

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Which of the following is an example of toxic stress?

A) a three year old getting a cavity filled at the dentist B) a two year old falling and breaking his arm C) a shy four year old having to start school D) a five year old whose neighborhood is overrun by gangs

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If there is evidence of sphericity in a repeated-measures design the outcome could be that?

A. The p-value will be too high. B. The p-value will be too low. C. A p-value cannot be computed. D. The p-value will not be related to the model.

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Which learning disorder is defined as "a neurologically based often familial disorder that interferes with the acquisition and processing of language"?

a. dyslexia b. autism c. attention deficit hyperactivity disorder d. stuttering

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