In early September, 2003, California's Governor Gray Davis approved a controversial law allowing people who were not legal residents to obtain a California state driver's license, That week the California Field Poll released a survey showing that 59% of registered voters opposed the law and 34% supported it. This part of the survey was based on a random sample of just over 300 people, conducted over the phone. The same week that the Field Poll was released a Web site called SFGate. com asked visitors to "Click to vote" on their preferred response to "Agree with new law allowing drivers' licenses for illegal immigrants?" The choices and the percent who chose them were "Yes, gesture of respect, makes roads safe" 19%, "No, thwarts immigration law, poses security risk" 79%, and "Oh, great, another messy ballot battle" 2%. The total number of votes shown was 2,900. (a) What type of sample was used for this poll? stratified random sample O haphazard sample O cluster sample O simple random sample volunteer sample (b) Which of the following are likely reasons why the percent who supported the law in this poll (19%) differed so much from the percent who supported it in the Field Poll (34%). (Select all that apply.) O With the availability of the website poll, it is more likely that individual who felt strongly against the issue would respond. [)When interview over the phone, people may have thought the socially acceptable answer was to support the law, and thus supported it even when they didn't. The third option "Oh, great, another messy ballot battle" took potential votes away from the option supporting the legislation. D More people who had access to the internet could learn about the issue than those who only had access to their phones. It is harder to reach individuals by phone than over the internet

In early September, 2003, California's Governor Gray Davis approved a controversial law allowing people who were not legal residents to obtain a California state driver's license. That week the California Field Poll released a survey showing that 59% of registered voters opposed the law and 34% supported it. This part of the survey was based on a random sample of just over 300 people, conducted over the phone. The same week that the Field Poll was released a Web site called SFGate.com asked visitors to "Click to vote" on their preferred response to "Agree with new law allowing drivers' licenses for illegal immigrants?" The choices and the percent who chose them were "Yes, gesture of respect, makes roads safe" 19%, "No, thwarts immigration law, poses security risk" 79%, and "Oh, great, another messy ballot battle" 2%. The total number of votes shown was 2,900. (a) What type of sample was used for this poll? stratified random sample haphazard sample cluster sample simple random sample volunteer sample (b) Which of the following are likely reasons why the percent who supported the law in this poll (19%) differed so much from the percent who supported it in the Field Poll (34%). (Select all that apply.) With the availability of the website poll, it is more likely that individual who felt strongly against the issue would respond. When interview over the phone, people may have thought the socially acceptable answer was to support the law, and thus supported it even when they didn't. The third option "Oh, great, another messy ballot battle" took potential votes away from the option supporting the legislation. More people who had access to the internet could learn about the issue than those who only had access to their phones. It is harder to reach individuals by phone than over the internet.