Which of the following statements about the t-statistic in regression is not true?
A. The t-statistic tests whether the regression coefficient, b, is equal to 0.
B. The t-statistic provides some idea of how well a predictor predicts the outcome variable.
C. The t-statistic can be used to see whether a predictor variable makes a statistically significant contribution to the regression model.
D. The t-statistic is equal to the regression coefficient divided by its standard deviation.
Answer: D
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A child develops a nosebleed during outdoor time. Your actions should be to:
A. take the child inside, have her lie down quietly, and apply pressure to her nose B. have the child rest quietly; put ice or a cold cloth on the back of her neck C. pinch her nostrils together for at least 5 minutes with the child in a sitting position D. call for emergency medical assistance (EMS)
In the first extensive study of family child care, Galinsky and her colleagues found that
a. the majority of the homes provided excellent care. b. only a small percent were rated as good. c. there was no relationship between the quality of the program and children’s development. d. very few homes were rated as inadequate.
Scattered light rays are called:
a. diffused reflections b. regular reflections c. translucent reflections d. Perpendicular reflections
"America 2000" initiated by President George H. W. Bush became "Goals 2000" under President Bill Clinton. Construct an essay in which you describe the goals and indicate which have been met, which have not, and why.
What will be an ideal response?