Friends is a popular American sitcom that began airing in 1994 and consists of six main characters living in New York City. 25 years later, a new generation gets immersed in "Friends". An avid fan conducted a study to assess if there is a relationship between favorite Friends character and age group among all adults in the US. The data are summarized below:

	Chandler	Joey	Monica	Phoebe	Rachel	Ross	Total
Generation X (41-57 yrs old)	27	14	8	14	12	1	76
Generation Z (18-25 yrs old)	19	26	2	3	1	9	60
Total	46	40	10	17	13	10	136

State the necessary assumptions required to perform the appropriate Chi-square test.