script 3 A researcher is interested in studying the difference in the proportion of Penn State undergraduates who attend graduate school upon graduation and the proportion of University of Oklahoma OU undergraduates who attend graduate school upon graduation Specifically the researcher believes the proportion of Penn State students who attend graduate school is higher than the proportion of OU students who attend graduate school To test her theory she randomly samples 250 Penn State seniors and finds 55 of those sampled will go directly to graduate school upon graduation In a random sample of 320 OU seniors 40 indicate they will go directly to graduate school upon graduation At the 01 level of significance is there enough information to conclude that the proportion of Penn State seniors who go directly to graduate school upon graduation is greater than the proportion of OU seniors who go directly to graduate school upon graduation List and clearly label all eight steps