Please answer these questions to the best of your ability.

I HE PRESIDEN I SAYS BOY SCO HOW "DO YOUR HOMEWORK" Identify what is wrong in each of these surveys. Be sure to explain. 1. The mayor of Springfield is interested in finding out the average age of people in the city. He obtains a list of all of the landline telephones in the city, and then contacts a simple random sample of 300 people. He uses the data from the sample to estimate the average age of all the people in the city. a. What is wrong with this survey? b. Do you think the Mayor will over or underestimate the true mean age of people in Springfield? Why? 2. The administration at a school wants to know the proportion of students that did all of their homework last night. They select a simple random sample of 100 students and send an email to each of them asking if they did all of their homework last night. Of the 40 responses, 35 of the students said that they did all of their homework last night (90%:). a. What is wrong with this survey? b. Do you think the administration will over or underestimate the true proportion of students who did all of their homework last night? Why? 3. Boy Scout Peter M. wants to know the proportion of people in his neighborhood who support the Boy Scouts. He takes a random sample of 30 homes and visits them dressed in his uniform. a. What is wrong with this survey? b. Do you think Peter will over or underestimate the true proportion of his neighbors who support the Boy Scouts? Why?Name: Hour: Date: Lesson 3.5 - Sampling and Surveys Important ideas from the text: Application 3.5 Who did you say is calling? Literary Digest? One of the most famous flops in survey history occurred in 1936, To predict the outcome of the presidential election between Republican Alf Landon and Democrat Franklin D. Roosevelt, the magazine Literary Digest sent over 10,000,000 * ballots" to its subscribers. They also sent "ballots" to registered owners of an automobile or telephone. About 2,400,000 of the ballots were returned, with a large majority (57%) favoring Landon. The election turned out to be a landslide, but for Roosevelt (81%) instead of Landon 1. Explain how undercoverage might have led to bias in this survey. 2. Explain how nonresponse might have led to bias in this survey. 3. If the magazine followed up with people who didn't return their ballots and was able to obtain responses, would this eliminate the bias described in parts (a) or (b)? Explain.Identifying Sampling Methods In each of the following examples, identify the sampling method being used. 1. A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public school:. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus, 20 schools were randomly selected and within each of those schools all fifth graders were tested. 2. A researcher is interested in maximum-security inmates. She groups inmates by the type of crime committed, determines the percentage of the total in each crime category, and uses that percentage to determine the number of inmates randomly selected from each group. 3. A researcher has a population of 100 third grade children from a local school district from which a sample of 25 children is to be selected. Each child's name is put on a list, and each child is assigned a number from 1 to 100. Then the numbers 1 to 100 are written on separate pieces of paper and shuffled. Finally, the researcher pick: 25 slips of paper and the numbers on the paper determine the 25 participants. 4. A sociologist conducts an opinion survey in a major city. Part of the research plan calls for describing and comparing the opinions of four different ethnic groups: African Americans, Asian Americans, European Americans, and Native Americans. For a total sample of 300, the researcher selects 75 participants from each of the four predetermined subgroups. 5. Instructors teaching research methods are interested in knowing what study techniques their students are utilizing. Rather than assessing all students, the researchers randomly select 10 students from each of the sections to comprise their sample.6. A researcher is interested in maximum-seeuxity inmates. She groups maximum-security prisons by state, then she selects three prisons. She includes all the inmates in those three prisons in her sample. 7'. You want to select a sample of GlutU students using simple random sampling: honr would you do this?I