Answer:
[tex]35\%[/tex] represents the sample proportion of the population
Step-by-step explanation:
From the question we are told that
  The sample size is  n  = 947
  The proportion of the population that believes that the Yankees will miss the playoffs this year is   [tex]k = 35\% = 0.35[/tex]
From the question we are told the confidence level is  97%
  The lower limit of the confidence level is a = 28%
  The upper limit of the  b = 42%
Generally the sample proportion of this population is mathematically represented as
     [tex]\^ p = \frac{a+ b}{2}[/tex]
=> Â Â Â [tex]\^ p = \frac{28 + 42 }{2}[/tex]
=> Â Â Â [tex]\^ p = 35\%[/tex]
Hence  [tex]35\%[/tex] represents the sample proportion