A subsequent survey of alumni, largely informed by posts on the career site Glassdoor, recorded career choice within two global hospitality chains.  The results are summarized in the following contingency table: CAREER TRACK MARRIOT HILTON OPERATIONS 10 5 CORPORATE 25 23   Using a 0.05 level of significance and using the data in above contingency table, is there evidence of a difference in job profile selection, based on hospitality chain? State the complete hypotheses (hypothesis null and hypothesis alternative for question (a) above

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