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Despite the fact that business travelers are the airlines’ biggest customers, they pay the highest prices. In his study of corporate air travel costs, Richard Fox reported that 45% of 56 big user firms (having annual travel costs of at least $10 million) and 111 of 146 small users (having annual travel costs less than $10 million) have established in-house travels agency. Test the hypothesis for a significant difference in the proportion of big and small users that have established in-house travel agency. Use alpha = 0.01 (use p value method)Show transcribed image text