Question: Rock singer Elvis Presley died on August 16, 1977, and his life received substantial publicity as the 25th anniversary of his death approached on August 16, 2002. On August 7-11, 2002, an ABC News poll asked a random sample of n = 1023 adult Americans, "Who do you think is the greatest rock ‘n' roll star of all time?" There were 128 different stars volunteered by respondents. The top responses and the percentages they received were Elvis Presley 38%, Jimi Hendrix 4%, John Lennon 2%, Mick Jagger 2%, Bruce Springsteen 2%, Paul McCartney 2%, Eric Clapton 2%, Michael Jackson 2%, Other 25%, None 7%, No opinion 15% (https://abcnews.go.com/sections/ us/DailyNews/elvis_poll.html, September 29, 2002).
a. Was this an open- or closed-form question?
b. Do you think the percentage who responded "Elvis Presley" was influenced by the timing of the poll? Explain.
c. Do you think the percentage who responded "Elvis Presley" would have been higher, lower, or about the same if the question had given specific choices?