Activity 14.Dependent t-testDirections: Analyze ifthere is significantdifference betweenthe pretest andposttest scores ofstudents in avocabulary test.PrePost1112913131087109778151299.1110 1010123 456 00

Before test (Pretest) and After test(Posttest) scores of students in vocabulary test is given by,…

Answered: Activity 14. Dependent t-test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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write your answers clearly in 12-pt blue font on the line underneath the problem like this. The following table includes two variables: sleep duration in hours and number of driving errors for 10 different truck drivers. Use the data set to answer the following questions. Sleep Duration (Hours) Driving Errors 0 21 1 19 2 15 3 15 4 14 5 12 6 9 7 7 8 4 9 10 11 5 2 1. Create a scatterplot of sleep duration (x) versus errors (y). Copy and paste the scatterplot as your answer. 2. Fit a linear regression model to sleep duration and driving errors. Copy and paste the Model Summary, ANOVA, and Coefficients table as your answer. 3. What is the value of the correlation coefficient between sleep duration and driving errors? 4. Is the regression analysis statistically significant? What is the test statistic, degrees of freedom, and p-value that supports your answer? 5. State the regression equation. 6. We are 95% confident that the true population slope parameter will fall between which two…
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What is the dependent and independent variable in the sentence below? What is the relationship between genderand A level of exam results?
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Which of the following is not equivalent to the other three? Choose the correct answer below. O Dependent variable Independent variable 000 O Predictor variable O Explanatory variable
a.Consider the two variables, High School GPA and Average Annual Earnings in Adulthood. Which isdependent?b. Describe the relationship between High School GPA and Average Annual Earnings in Adulthood. Is thecorrelation positive or negative? (Write at least two sentences.)c. Does a person’s High School GPA cause them to earn a certain salary in adulthood? Explain.
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A matched-pair case-control study was conducted in order to assess if there is a relationship between serum Vitamin D levels and migraine headaches. The results are shown below: Control Control With migraine No Migraine 22 49 (Case) High Vitamin D (Case) Low Vitamin D 36 18 What would be the total number of participants with migraine after we unmatched the pairs? Answer should be in numerical form. Avoid extra spaces before and after your answers. Answer should be a whole number; no decimal points.
ExQm Score Oata 76 69 64 75 70 80 26 51 64 95 90 86 77 79 82 62 76 65 68 74 celaus, exam deta (aboue), compute he mean for the meesure olo she dota median 2 whyys 2 For Jhe cleess which best represents or the think the mean
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Activity 14. Dependent t-test Directions: Analyze if there is significant difference between the pretest and posttest scores of students in a vocabulary test. Pre Post 1 11 9 12 13 4 13 10 7 10 9 7 8 8 9 15 12 11 10 10 10