Question: Hello these are practice exams for Stats 302 and i dont understand how to find the t-value or the P-value PLEASE Help i cant find

Hello these are practice exams for Stats 302 and i dont understand how to find the t-value or the P-value PLEASE Help i cant find explanations anywhere

Hello these are practice exams for Stats 302 and i dont understandhow to find the t-value or the P-value PLEASE Help i cant

[Use the following information to answer the next 3 questions.] American football is a contact sport that can expose players to repeated head impacts. Twenty-two players of average age 12 years old were recruited for a brain study; the players wore sensor-equipped helmets during all practice and game events for an entire football season to record & = subconcussion exposure. Each player also received an MRI scan at the beginning and at the end of the season to measure the y = percent change in brain white matter tract (where negative numbers indicate a loss in volume of brain white matter). Researchers were interested in testing whether an increase in subconcussion exposure was negatively associated with change in brain white matter; below is the output from the regression model for the n = 22 players. With Outlier Without Outlier Change 0.2 0.4 0.6 0.8 Exposure Regression output with all points (including outlier): Estimate Std. Error t-value Pr(> (t)) Intercept 3.331 1.129 0.00791 Exposure -10.104 3.601 0.01092 1. What was the t-value for the researchers' hypotheses? a) -13.16 b) -2.806 c) 2.950 1) 13.84 e) We need to know the hypothesized population mean to calculate a t-value.2. What was the p-value for the researchers' hypotheses? a) 0.00395 b) 0.00546 c) 0.00791 d) 0.01092 e) 0.0158 3. There is an outlier in the data set. Notice regression lines both with and without the outlier are drawn on the scatterplot. Describe what kind of outlier it is, and whether it affects slope and p-value for slope. a) Influential point. Affects p-value but not slope. b) Influential point. Affects both p-value and slope. c) Regression outlier, but not influential. Affects slope but not p-value. d) Regression outlier, but not influential. Affects both p-value and slope. e) Outlier, but not regression outlier or influential. Affects p-value but not slope

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