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 likely voters polled, is there a difference between those favoring Biden over Trump?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.