Statistics: Testing Hypothesis with the Z-statistic – #374


Question: Research at the University of Toledo indicated that 50 percent of the students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed their major area of study after their first year of the program. Has there been a significant decrease in the proportion of students who change their major after the first year in this program Test at the .05 level of significance.

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