(Answered) A psychologist wanted to determine the best viewing

Statistics

A psychologist wanted to determine the best viewing distance for a 75-inch flat screen TV. She randomly assigned 80 participants to one of three viewing distances: 5 feet, 10 feet, and 15 feet. After each participant watched a sitcom tv show for 1 hour, each participant rated their viewing satisfaction on a scale of 0-100.

What type of test is needed to analyze the data?
What is the hypotheses (including the symbols used to state the hypothesis)?

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