How is the least squares criterion used to fit the regression line?
What will be an ideal response?
Correct Answer:
The regression line is laid down in such a way that the sum of the squared distances between the Y values and the line be as small as possible. That is, the sum of the squared distances is a minimum.
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Young adults are expected to:
A. develop and refine skills and abilities that foster competency in work roles B. choose a mate and develop an appropriate lifestyle C. become involved in a committed relationship with another person D. all of the above are correct E. the first and second choices only
To assess the relevance of actual criteria for the important tasks comprising the job(s) under consideration, what type of analysis is required?
a. structural stability analysis b. content validity analysis c. employment opportunity analysis d. employer accountability analysis
Discuss the four factors teachers should consider when determining the spatial layout of their classrooms.
What will be an ideal response?
Which of the following statements is true?
A. Confidence intervals are known as point estimates. B. Confidence intervals tell us about the range of possible values of a statistic within the sample. C. If the confidence interval for the difference between two means does include zero then the difference between the means is statistically significant. D. Confidence intervals are not biased by non-normally distributed data.