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We are interested in studying whether education level affects people's credit default risk (failing paying their...

We are interested in studying whether education level affects people's credit default risk (failing paying their credit debt). A random study was conducted to see the percent of those who default on their credit card was conducted.

HIghest level education attained % defaulted Number of people studied
High School 36% 100
Some College 20% 160
Bachelor's degree 15% 180
Advanced degree 6% 50

Test the null hypothesis of whether the popluation proportions of credit default rate is the same for all levels of education. Provide the test statistic value from your analysis.

Math   Statistics-And-Probability   
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