A national standardized test consists of three parts: critical reading, mathematics, and writing. Suppose each part of the test isscored on a 200- to 800-point scale with a median of approximately 510. Scores for each part of the test can be assumed to besymmetric. Use the following data to test the hypothesis that the population median score for the students taking the writing portionof the test is 510.635 701 439 447502447405 453 471 476590 337 387Ho: Median > 510H: Median < 510aState the null and alternative hypotheses.Ho: Median # 510H: Median = 510Ho: Median < 510H₂: Median = 510Ho: Median = 510H₂: Median # 510464Ho: Median ≤ 510Ha:: Median > 510Find the value of the test statistic.T+ = 39514Find the p-value. (Round your answer to four decimal places.)p-value = 0.2340 XUsing a = 0.05, what is your conclusion?Reject Ho. There is sufficient evidence to conclude that the population median writing test score is not 510.Do not reject Ho. There is not sufficient evidence to conclude that the population median writing test score is not 510.Reject Ho. There is not sufficient evidence to conclude that the population median writing test score is not 510.Do not reject Ho. There is sufficient evidence to conclude that the population median writing test score is not 510.

Given information: Data: x 635 701 439 447 464 502 405 453 471 476 447…

Answered: A national standardized test consists…

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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3. Can SAT scores predict college performance? Let x be a variable that represents SAT score of a computer science major, and let y be a variable that represents a student’s GPA upon graduation. A random sample of n =15 computer science majors provided their SAT scores and GPAs: x 1232 1070 1086 1287 1130 1048 1121 1095 1135 1208 1333 1160 1186 1243 1261 y 3.52 2.91 2.4 3.47 3.47 2.37 2.4 2.24 3.02 3.32 3.59 2.54 3.19 3.71 3.58 The scatter diagram for the SAT score and GPA is given below: (a) Find the sample correlation coefficient r. Truncate to two decimal places. What does the value tell you about the data? (b) Find the equation of the least squares line . Truncate to four decimal places. What does the slope mean? (c) Find the value of the coefficient of determination . Truncate to two decimal places. What does this number mean? (d) What is the predicted GPA if a computer science major got a…
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