stats quiz 3 (1).docx - Question 1.0.5 out of 0.5 points A researcher asked his respondents for their political affiliation He obtained this data Data

stats quiz 3 (1).docx - Question 1.0.5 out of 0.5 points A...

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Question 1 .0.5 out of 0.5 points A researcher asked his respondents for their political affiliation. He obtained this data: Data – Political Affiliation: Independent, Democrat, Democrat, Republican, Republican, Republican, Democrat, Republican, Republican, Democrat, Independent, Republican, Republican, Republican, Independent, Republican, Democrat, Republican, Republican, Democrat, Democrat, Independent, Republican, Independent, Republican What is the mode for this data set? Selected Answer: Republican . Question 2 .0.5 out of 0.5 points In one of our recent elections, the president-elect could be heard exclaiming, “I’m a mode!” What did he mean? ‘ Selected Answer: I received the most votes. . Question 3 .0.5 out of 0.5 points Which measure of central tendency is appropriate for the following data? Gender – N = 696, 255 (37%) male (coded as 0 in database) and 441 (63%) female (coded as 1 in database) Selected Answer: Mode = 1 or female . Question 4 .0.5 out of 0.5 points
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Identify the mode in the following data set: 2, 3, 5, 8 Selected Answer: There is no mode. . Question 5 .0 out of 0.5 points A researcher asked his respondents for their education level. He obtained this data: Data – Education in 4 categories: less than HS, HS diploma or GED, Associate or Baccalaureate degree, Graduate degree (MS or doctorate): See table below Education Category N % less than HS 6 20 HS diploma or GED 12 40 Associate or Baccalaureate degree 10
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33 Graduate degree (MS or doctorate) 2 7 What is the median for this data? Selected Answer: unable to determine for this data set . Question 6 .0.5 out of 0.5 points For the following data, what is the mode score, and what is its frequency? Data: 18, 18, 18, 19, 19, 19, 19, 20, 22, 22, 23, 23, 23, 24, 25, 26, 26, 29, 33, 64? Selected Answer: 19 and 4 . Question 7 .0.5 out of 0.5 points What is the first thing you would do to calculate the median for these data? 1, 6, 13, 2, 5, 3, 27, 4 Selected Answer: Arrange the numbers in order. . Question 8 .0.5 out of 0.5 points
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In the following data set, which score is the outlier? 27, 34, 36, 38, 74 Selected Answer: 74 . Question 9 .0.5 out of 0.5 points What is the median for these data, and is it the most appropriate measure of central tendency? 1, 6, 13, 2, 5, 3, 27, 4 Selected Answer: 4.5, yes . Question 10 .0.5 out of 0.5 points A researcher asked his respondents for their political affiliation. He obtained this data: Data – Political Affiliation: Independent, Democrat, Democrat, Republican, Republican, Republican, Democrat, Republican, Republican, Democrat, Independent, Republican, Republican, Republican, Independent, Republican, Democrat, Republican, Republican, Democrat, Democrat, Independent, Republican, Independent, Republican What is the best measure of central tendency for this data? Selected Answer: mode . Question 11 .0 out of 0.5 points What is the variance of this sample? 1, 2, 3, 6
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Selected Answer: 3.5 Response Feedback: Use the formula for sample variance to arrive at 3.5 (choice C). Choices A, B, and D represent errors in logic or calculation.
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