Question: Does your doctor know? (part 2). The table in Exercise 14 shows whether NEJM medical articles during various time periods included statistics or not. We

Does your doctor know? (part 2). The table in Exercise 14 shows whether NEJM medical articles during various time periods included statistics or not. We re planning to do a chi-square test.

a) How many degrees of freedom are there?

b) The smallest expected count will be in the 1989/No cell. What is it?

c) Check the assumptions and conditions for inference.

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