On July 19, 2020, several national poll results for the presidential election were published. Two used likely voters for the November election while 2 others used registered voters (regardless of their likelihood of voting). The results for all po
On July 19, 2020, several national poll results for the presidential election were published. Two used likely voters for the November election while 2 others used registered voters (regardless of their likelihood of voting). The results for all polls are summarized below:
LIKELY VOTER POLLS
Poll #1: Pro-Biden - 541; Pro-Trump - 453; Undecided - 110
Poll #2: Pro-Biden - 465; Pro-Trump - 338; Undecided - 42
REGISTERED VOTER POLLS
Poll #1: Pro-Biden - 363; Pro-Trump - 289; Undecided - 21
Poll #2: Pro-Biden - 363; Pro-Trump - 296; Undecided - 14
I am particularly interested in knowing whether either set of polls can be used to determine whether the American electorate appear to favor one candidate over the other on this date.
Use the Sign Test to answer the following. Combine the like polls. Identify steps taken to come to your conclusion.
Of registered voters, is there a difference in the number favoring Biden over Trump?
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