Final answer:
Walt Whitman conveys the attitude of the 'New American' in 'I Hear America Singing' through his celebration of the diverse and hardworking individuals that make up America.
Step-by-step explanation:
Walt Whitman conveys the attitude of the 'New American' in the poem 'I Hear America Singing' through his celebration of the diverse and hardworking individuals that make up America. He represents the working class by describing the various professions in the poem, such as mechanics and carpenters, each singing their songs in a joyful and strong manner. This conveys his belief in the power and contribution of every individual to the collective spirit of America.