In an AOL survey of Internet users, this question was posted online: "Have you ever been hit by a computer virus?" Among the 170,063 responses, 63% answered "yes." What term is used to describe this type of survey in which the people surveyed consist of those who chose to respond? What is wrong with this type of sampling method? What term is used to describe this type of survey? Select all that apply. O A. The respondents are a population. O B. The respondents are a census. O c. The respondents are a self-selected sample. O D. The respondents are a voluntary response sample.

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

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A: We should use stratified sampling for this experiment,

Q: Given the sample data: {1, 2, 3, 5, 7, 9, 12}, calculate the lower fourth. 2 2.5 О 3.0 O 2.0

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A: Note: Hi there! Thank you for posting the question. To avoid the plagiarism issue we have used the…

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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…

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A: We have to find sample proportion.

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

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A: A survey is being conducted

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A: # To choose which type of random sampling is used in the given scenario?

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Q: In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older…

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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^ =…

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A: See the solution

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A:

Q: phazardly sed in this experiment? O a. Cluster O b. Systematic C Convenience

A: NOTE: As per the guidelines, we are supposed to solve one question only. Kindly repost other as…

Q: Need the correct answer, thanks. Question: A doctor samples patients by selecting every third…

A:

Q: If you drew names from a hat containing all the names of the students in your school wha kind of…

A: Probability sampling: Every unit in the population gets equal chance of being selected as sample.

Q: 1950, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on…

A: In 1950, Total adults n1=1100                       x1=374 In recent year…

Q: Which of the following are sources of sampling error and which are sources of nonsampling error?

A: Sampling errors are the errors that are arises due to fact that samples are taken to infer the…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.