Preventable chronic diseases are increasing rapidly in some​ regions, particularly diabetes. Shown below is a contingency table showing cross classification of educational attainment and diabetic state for a random sample of 1337people in a region​ (HS is high​ school). Find the critical value for a test for independence at the 0.01 significance level. Do NOT perform the hypothesis test.       Less than HS HS grad Some college College grad Total   Diabetes 29 37 24 34 124   No diabetes 377 245 311 280 1213   Total 406 282 335 314 1337     The critical value is.......

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.