According to the University bookstore records, 60% of the students purchase a hard copy of textbooks, 25% of students print textbooks out from the website, and 15% of students read the textbook online. At the end of the semester, a statistics professor asks her students to complete a survey where they indicate what format of the book they used. Test the claim that the distribution from the professor's class is as expected at the distribution of the all textbooks in the bookstore. The table below shows the results the observed values, the expected values, and the value of (O-E)^2/E for each category. Observed Expected (O-E)^2/E Buy Hard Copy 71 75.6 0.279894 Print Out 30 31.5 0.071429 Read Online 25 18.9 1.968783 (a) Calculate the chi-squared test statistic, the degrees of freedom associated with it, and the p-value. The value of the test-statistic is: (please round to two decimal places) The degrees of freedom associated with this test are: The p-value associated with this test is: (please round to four decimal places) (b) Based on the p-value calculated in part (d), what is the conclusion of the hypothesis test? O Since p

According to the University bookstore records, 60% of the students purchase a hard copy of textbooks, 25% of students print textbooks out from the website, and 15% of students read the textbook online. At the end of the semester, a statistics professor asks her students to complete a survey where they indicate what format of the book they used. Test the claim that the distribution from the professor's class is as expected at the distribution of the all textbooks in the bookstore. The table below shows the results the observed values, the expected values, and the value of (O-E)^2/E for each category. Observed Expected (O-E)^2/E Buy Hard Copy 71 75.6 0.279894 Print Out 30 31.5 0.071429 Read Online 25 18.9 1.968783 (a) Calculate the chi-squared test statistic, the degrees of freedom associated with it, and the p-value. The value of the test-statistic is: (please round to two decimal places) The degrees of freedom associated with this test are: The p-value associated with this test is: (please round to four decimal places) (b) Based on the p-value calculated in part (d), what is the conclusion of the hypothesis test? O Since p

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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