A study done a a polling organization Randomly surveyed 1031 adults by phone. The poll found that 42%of the respondents said they spend less than three hours a day watching TV. Based on this finding calculate to 2 decimals places the ((%confidence interval for the proportion of US adults who spend less than three hours watching TV on an average day.
a) [.35,.45]
b) [.38,.46]
c) [.41,.43]
d) [.30,.50]
e) [.32,.52]
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