State the null and alternative hypotheses

Reference no: EM131426850

Does your doctor know? A survey of articles from the New England Journal of Medicine (NEJM) classified them according to the principal statistics methods used. The articles recorded were all non-editorial articles appearing during the indicated years. Let's just look at whether these articles used statistics at all.

	Publication Year
	1978-79	1989	2004-05	Total
No stats	90	14	40	144
Stats	242	101	271	614
Total	332	115	311	758

Has there been a change in the use of Statistics over the decades?

a) What kind of test would be appropriate?

b) State the null and alternative hypotheses.

Reference no: EM131426850

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