elow are two scenarios.  One exhibits sampling bias, and one exhibits wording bias.  Identify the type of bias in each scenario, and explain briefly. Type your response to both (a) and (b) in the box below. (a)  A poll question sent to a random sample of all US residents asks “Do you believe that concerned citizens should get the COVID vaccine?” to estimate the proportion of all US residents who think everyone should get the vaccine. (b) Ask a random sample of students at the library on a Friday night “How many hours a week do you study?” to collect data to estimate the average number of hours a week that all college students study.

Q: In a recent Gallup poll, pollsters randomly selected adults and asked them whether they smoke.…

A: Introduction There are 2 types sampling methods: Prob. methods Non-Prob. methods

Q: Briefly discuss the four probability-based sample methods.

A: Probability based sampling methods: The 4 probability-based sampling methods are given below:…

Q: medical information​ online?" Of 1072 Internet users who chose to​ respond, 38% of them responded…

A: The term used to describe this type of survey is C. The respondents are a voluntary response…

Q: Suppose the Humane Society claims that 30% of U.S. households own cats. You believe your community…

A: Given: p=30%=0.30n=300p^=23%=0.23

Q: A newspaper posted this question on its website: "How often do you seek medical information online?"…

A:

Q: In 1941, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: We have given that For the survey taken in 1941 n1 = 1100x1 = 374p̂ = x1/n1 = 151/429 = 0.3520 And…

Q: Fill in the expected frequencies.

A: here use given data table  Outcome Observed Frequency Math/Science 318 Arts &…

Q: Identify the sampling method and a possible source(s) of bias. A statistics student who is curious…

A: Two types of sampling : 1 : Probability sampling : (every member of population has equal chance to…

Q: Bopulation proportion of 1943 adults who were total abstainers and p, represent the population…

A: Solution: Given N1=1100,  X1=429 N2=1100,  X2=374 (α)= 0.05

Q: A sportswriter wants to know how strongly

A: Simple random sampling is defined as a sampling technique where every item in the population has an…

Q: question in my homework asks me to: Identify the type of sampling used (random, systematic,…

A: Given is that,A women experienced a tax audit. The tax department claimed that the women was audited…

Q: Consider the two questions shown below. (a) Out of apples, oranges, bananas, and pears, which fruit…

A:

Q: Consider the following: at Bernhardt College, 200 (of the 3,000) students were polled and asked how…

A: From the given information, At Bernhardt College, 200 (of the 3,000) students were polled and asked…

Q: A large company has 3000 employees. The management has installed coffee machines everywhere in the…

A: Given information: Level of satisfaction Level of education Total Low education High education…

Q: Assuming a sample size of​ 1,000 for this​ poll, construct a 90​% confidence interval for the true…

A: It is given that Sample size n = 1000 Sample proportion = 0.62 The critical value of z at 90%…

Q: 2. Administrators at a hospital are concerned about the possibility of drug abuse by people who work…

A: Given Information: Consider the given study in which the hospital's administrators are concerned…

Q: A social scientist wishes to conduct a survey. She plans to ask a yes/no question to a random sample…

A: It is required to identify the correct option.

Q: student decides to spin a dime and determine the proportion of times it lands on heads. The student…

A: We have given that  Sample size n = 25 Favorable cases x =17 Population proportion p =0.5

Q: A poll asked respondents if they had taken a vacation in the last year. The respondents were…

A: Given information is: From above table, we can conclude the following: Total number of respondents…

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Determine which Sample Type is used in  the following scenarios.   President Biden want to survey…

A: A population is the set of all objects of interest. A sample is a subset of the population. It is…

Q: In an AOL survey of Internet users, this question was posted online: "Have you ever been hit by a…

A: A population is a collection of all possible observations, whereas a census tries to gather whole…

Q: Sampling Eye Color Based on a study by Dr. P. Sorita Soni at Indiana University, we know that eye…

A: a.It is given that the statistics instructor collects eye color data from her students.The sample…

Q: A company is started by four friends. The company was Erica’s idea, so she wants to fill 70% of the…

A:

Q: A family wants to have two children. The children can either be male or female. What is the sample…

A: Let B denotes boy and G denotes girl.

Q: b. Which group is more likely to have taken a vacation in the last year: college graduates or…

A: Given data:   Yes No Total College Graduate 183 67 250 Not a College Graduate 126 124 250…

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let, X1= number of abstainer in the previous test n1= total sample size of the past test p1^ =…

Q: III. The Big Smiles Portrait Studio is conducting a survey among their clients. One of the questions…

A: Question III)The sample size is .The proportion of clients who answer yes is .

Q: In 1944​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: We habe to find given proportion.

Q: What kind of test should I run for this question and how do I run the test?   During the first 13…

A: We will use chi-square goodness of fit statistic to test the hypothesisGiven data and calculation…

Q: James is conducting a job analysis for the job of Fire Captain for the City of Fayetteville. He…

A: Select the type of sample for the above data

Q: were received. (a) What population is sampled in this survey? The population is 100,000 randomly…

A: a)Option c) is correct. The population is all physicians practicing in the United States   b) Sample…

Q: Food services sent a survey to student, faculty, and staff in order to understand the lunch…

A: Given that, Food services sent a survey to student, faculty, and staff in order to understand the…

Q: A television sports commentator wants to estimate the proportion of citizens who​ "follow…

A: Given Data: Margin of Error=0.22 p=0.54   z-value=1.96

Q: The floor exercise is a commonly shared event between the Women’s and Men’s Artistic Gymnastics…

A: i)

Q: Sampling Eye Color Based on a study by Dr. P. Sorita Soni at Indiana University, we know that eye…

A: a.It is given that the statistics instructor collects eye color data from her students.The sample…

Q: Question for context: One way of checking for the effects of undercoverage, nonresponse, and other…

A: p^ = 0.139 μp = p^ = 0.139σ2 = p1-pn      = 0.139 (1-0.139)1500     = 0.000079σp = 0.000079      =…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5%  So, the…