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A conservative television station wanted to determine the proportion of voters in its city who support a Democratic candidate for mayor. The station invited its viewers to call one phone number if they supported the candidate and another phone number if they did not support that candidate. They received 1248 calls, 220 of which supported the candidate. (Note that Democrats are generally considered more liberal, while Republicans are generally considered more conservative.) Part A: The study conducted was Observational Part B: Did the sampling method likely produce a representative sample? O No, the viewers of a conservative station are not likely to represent the opinions of all voters in a city. O Yes, the poll was open to anyone in the population who wanted to call. Yes, the sample size was quite large. O No, the sample size was too small.

A conservative television station wanted to determine the proportion of voters in its city who support a Democratic candidate for mayor. The station invited its viewers to call one phone number if they supported the candidate and another phone number if they did not support that candidate. They received 1248 calls, 220 of which supported the candidate. (Note that Democrats are generally considered more liberal, while Republicans are generally considered more conservative.) Part A: The study conducted was Observational Part B: Did the sampling method likely produce a representative sample? O No, the viewers of a conservative station are not likely to represent the opinions of all voters in a city. O Yes, the poll was open to anyone in the population who wanted to call. Yes, the sample size was quite large. O No, the sample size was too small.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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A conservative television station wanted to determine the proportion of voters in its city who support a Democratic candidate for mayor. The station invited its viewers to call one phone number if they supported the candidate and another phone number if they did not support that candidate. They received 1248 calls, 220 of which supported the candidate. (Note that Democrats are generally considered more liberal, while Republicans are generally considered more conservative.) Part A: The study conducted was Observational Part B: Did the sampling method likely produce a representative sample? O No, the viewers of a conservative station are not likely to represent the opinions of all voters in a city. Yes, the poll was open to anyone in the population who wanted to call. Yes, the sample size was quite large. O No, the sample size was too small.
Transcribed Image Text:A conservative television station wanted to determine the proportion of voters in its city who support a Democratic candidate for mayor. The station invited its viewers to call one phone number if they supported the candidate and another phone number if they did not support that candidate. They received 1248 calls, 220 of which supported the candidate. (Note that Democrats are generally considered more liberal, while Republicans are generally considered more conservative.) Part A: The study conducted was Observational Part B: Did the sampling method likely produce a representative sample? O No, the viewers of a conservative station are not likely to represent the opinions of all voters in a city. Yes, the poll was open to anyone in the population who wanted to call. Yes, the sample size was quite large. O No, the sample size was too small.
Part C: What proportion of the sample supported the Democratic candidate? Record your response as a percentage, rounded to the nearest tenth of a percentage point. Answer: Part D: Was this proportion likely influenced by bias? We cannot tell No Yes % Part E: Was the proportion that you found in Part C likely too low or too high, compared to the general population of voters? The proportion was likely too high Either was equally likely O The proportion was likely too low
Transcribed Image Text:Part C: What proportion of the sample supported the Democratic candidate? Record your response as a percentage, rounded to the nearest tenth of a percentage point. Answer: Part D: Was this proportion likely influenced by bias? We cannot tell No Yes % Part E: Was the proportion that you found in Part C likely too low or too high, compared to the general population of voters? The proportion was likely too high Either was equally likely O The proportion was likely too low
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