4. A local T'v' station conducts an \"Instant Poll" to predict the winner in the upcoming mayoral election. Evening news viewers were invited to phone in their votes. with the results to be announced on the latenight news. Based on the phone calls: the station predicted that Joseph Serra would win the election with 52% of the vote. They were wrong: Serra lost, getting only 45% of the vote. This faulty prediction may be the consequence of what ltind of bias? [2.5 pts} 5. According to Abyss Consulting, the average age of viewers of \"America's Got Talent" is 25 years old. However, the producer of the show thinks it is higher than 25. a. Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 tits} b. Is this a righttailed, lefttailed, or twotailed test? [2 pts} 5. A research analyst believes that average backtoschool spending is less than a trade group's prediction of $655. a. Write the null hypothesis Ho and alternative hypothesis Ha. [2.5 ptSTa b. Is this a righttailed, left-tailed, or two-tailed test? [2 pts}'i