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Scenario: I collected intelligence test data from 200 individuals. Each was given 6 separate tests: Inference, Computation, Vocabulary, Reasoning, Writing and Grammar. I was interested

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Scenario: I collected intelligence test data from 200 individuals. Each was given 6 separate tests: Inference, Computation, Vocabulary, Reasoning, Writing and Grammar. I was interested in determining which test(s) best predicted the Inference score. The results of my initial run with all possible predictors is presented below. Please answer the questions that follow: Model Summary Adjusted R Std. Error of the Model R R Square Square Estimate 850 723 .716 894 a. Predictors: (Constant), Grammar, Computation, Reasoning, Vocabulary, Writing Coefficients Standardized Unstandardized Coefficients Coefficients Model B Std. Error Beta Sig. (Constant) .597 265 2.255 025 Computation 764 042 815 18.153 000 Vocabulary -.093 059 -.094 -1.595 112 Reasoning .064 .039 074 1.633 104 Writing 060 059 071 1.017 310 Grammar -.046 .057 -.051 -.816 416 a. Dependent Variable: Inference 30. What is the r squared value?6. True or False: A bimodal distribution can be considered a standard normal distribution. 7. A distribution of scores where most are concentrated on the low end of the measure with fewer data points in the tail on the high end of the measure is best described as: A. A normal distribution B. A negatively skewed distribution/skewed left distribution C. A bimodal distribution D. A positively skewed distribution/skewed right distribution 8. Which of the following is a measure of variability? A. Mean B. Variance C. Mode D. Kurtosis 9. True or False: The standard deviation is the square root of the variance.16. If I was interested in graphically examining the normality of my test scores, which method/graph would be most appropriate and informative? A. Pie chart B. Bar chart C. Box plot (Box and Whiskers Plot) D. Scatterplot 17. Which of the following is not a common type of t-test? A. Independent Samples T-test B. Orthogonal T-test C. One-sample T-test D. Paired/Dependent Samples T-test 18. True or False: You cannot compare three means using a t-test

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