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1.42 She Sounds Tall! Presented with recordings of a pair of people of the same sex speaking the same phrase, can a listener determine which speaker is taller simply from the sound of their voice? Twenty-four young adults at Wash- ington University listened to 100 pairs of speakers and, within each pair, were asked to indicate which of the two speakers was the taller. Here are the number correct (our of 100) for each of the 24 participants:³2 L HEARING 65 61 67 59 58 62 56 67 61 67 63 53 68 49 66 58 69 70 65 56 68 56 58 70 Researchers believe that the key to correct discrimination is contained in a particular type of sound produced in the lungs, whose frequency is lower for taller people. (a) Make two stemplots, with and without splitting the stems. Which plot do you prefer, and why? (b) Describe the shape, center, and variability of the distribution. Are there any outliers? (c) If the experimental subjects are just guessing which speaker is taller, they should correctly identify the taller person about 50% of the time. Does this data support the researchers' conjecture that there is in- formation in a person's voice to help identify the taller person? Why or why not?

1.42 She Sounds Tall! Presented with recordings of a pair of people of the same sex speaking the same phrase, can a listener determine which speaker is taller simply from the sound of their voice? Twenty-four young adults at Wash- ington University listened to 100 pairs of speakers and, within each pair, were asked to indicate which of the two speakers was the taller. Here are the number correct (our of 100) for each of the 24 participants:³2 L HEARING 65 61 67 59 58 62 56 67 61 67 63 53 68 49 66 58 69 70 65 56 68 56 58 70 Researchers believe that the key to correct discrimination is contained in a particular type of sound produced in the lungs, whose frequency is lower for taller people. (a) Make two stemplots, with and without splitting the stems. Which plot do you prefer, and why? (b) Describe the shape, center, and variability of the distribution. Are there any outliers? (c) If the experimental subjects are just guessing which speaker is taller, they should correctly identify the taller person about 50% of the time. Does this data support the researchers' conjecture that there is in- formation in a person's voice to help identify the taller person? Why or why not?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1.42 1.43 (c) Explain why it is not appropriate to use a pie chart to display any of these distributions. She Sounds Tall! Presented with recordings of a pair of people of the same sex speaking the same phrase, can a listener determine which speaker is taller simply from the sound of their voice? Twenty-four young adults at Wash- ington University listened to 100 pairs of speakers and, within each pair, were asked to indicate which of the two speakers was the taller. Here are the number correct (out of 100) for each of the 24 participants:32 HEARING 65 61 67 59 58 62 56 67 61 67 63 53 68 49 66 58 69 70 65 56 68 56 58 70 Researchers believe that the key to correct discrimination is contained in a particular type of sound produced in the lungs, whose frequency is lower for taller people. (a) Make two stemplots, with and without splitting the stems. Which plot do you prefer, and why? (b) Describe the shape, center, and variability of the distribution. Are there any outliers? (c) If the experimental subjects are just guessing which speaker is taller, they should correctly identify the taller person about 50% of the time. Does this data support the researchers' conjecture that there is in- formation in a person's voice to help identify the taller person? Why or why not? Watch Those Scales! Figures 1.21(a) and 1.21(b) both show time plots of tuition charged to in-state students
Transcribed Image Text:1.42 1.43 (c) Explain why it is not appropriate to use a pie chart to display any of these distributions. She Sounds Tall! Presented with recordings of a pair of people of the same sex speaking the same phrase, can a listener determine which speaker is taller simply from the sound of their voice? Twenty-four young adults at Wash- ington University listened to 100 pairs of speakers and, within each pair, were asked to indicate which of the two speakers was the taller. Here are the number correct (out of 100) for each of the 24 participants:32 HEARING 65 61 67 59 58 62 56 67 61 67 63 53 68 49 66 58 69 70 65 56 68 56 58 70 Researchers believe that the key to correct discrimination is contained in a particular type of sound produced in the lungs, whose frequency is lower for taller people. (a) Make two stemplots, with and without splitting the stems. Which plot do you prefer, and why? (b) Describe the shape, center, and variability of the distribution. Are there any outliers? (c) If the experimental subjects are just guessing which speaker is taller, they should correctly identify the taller person about 50% of the time. Does this data support the researchers' conjecture that there is in- formation in a person's voice to help identify the taller person? Why or why not? Watch Those Scales! Figures 1.21(a) and 1.21(b) both show time plots of tuition charged to in-state students
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