According to a Pew Research Centernationwide telephone survey of adults conducted between March 15 and April 24, 2011.55% of college graduates said that college education prepared them for a job Time. May 30, 2011Suppose this result waste of all college graduates allhat sample 1850 college graduates 60% said that college education prepared them for job there significant evidence at a 2% significance level to conclude that the current percentage of all college graduates who will that college education prepared them for a job is different from 55% Use both the p-value and the critical-value approaches Round your answers fo

Can use of an online plagiarism-detection system reduce plagiarism in student research papers? The paper "Plagiarism and Technology: A Tool for Coping with Plagiarism"+ describes a study in which randomly selected research papers submitted by students during five semesters were analyzed for plagiarism. For each paper, the percentage of plagiarized words in the paper was determined by an online analysis. In each of the five semesters, students were told during the first two class meetings that they would have to submit an electronic version of their research papers and that the papers would be reviewed for plagiarism. Suppose that the number of papers sampled in each of the five semesters and the means and standard deviations for percentage of plagiarized words are as given in the accompanying table. Semester n Mean Standard deviation 1 2 3 4 5 36 43 34 6.32 3.34 1.77 34 1.82 33 1.50 3.75 3.08 3.25 3.12 2.39 For purposes of this exercise, assume that the conditions necessary for the…

A home improvement company is interested in improving customer satisfaction rate from the 58% currently claimed. The company sponsored a survey of 273 customers and found that 171 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company.

A pollof 2000 randomly selected students in grades 6 through 8 was conducted and found that 48% enjoy playing sports. Is the 48% result a statistic or a parameter?