rileync2005 rileync2005

24-04-2024
Mathematics

Answered

A political scientist investigated the effect of political advertisements on the way that people voted in the presidential election. They want to do a hypothesis test to determine if political advertisements influenced the vote of less than 31% of all voters.

The political scientist randomly surveyed 2509 voters and asked if political advertisements influenced the way the person voted. 709 said the advertisements did influence their vote.

The rejection region of the test at α =.01 is

Reject H₀ if z < -2.33.

What is the conclusion of the test?

Answer :

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