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Young Blood Helps Old Brains Several studies¹ in mice indicate that it might. In the studies, old mice (equivalent to about a 70-year-old person) were randomly assigned to receive blood plasma either from a young mouse (equivalent to about a 25-year-old person) or another old mouse. The mice receiving the young blood showed multiple signs of a reversal of brain aging. One of the studies2 measured exercise endurance using maximum treadmill runtime in a 90-minute window. The results are given in the side-by-side boxplots in the figure below. Plasma Old

Young Blood Helps Old Brains Several studies¹ in mice indicate that it might. In the studies, old mice (equivalent to about a 70-year-old person) were randomly assigned to receive blood plasma either from a young mouse (equivalent to about a 25-year-old person) or another old mouse. The mice receiving the young blood showed multiple signs of a reversal of brain aging. One of the studies2 measured exercise endurance using maximum treadmill runtime in a 90-minute window. The results are given in the side-by-side boxplots in the figure below. Plasma Old

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
Section10.3: Measures Of Spread
Problem 1GP
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cab ock Young Blood Helps Old Brains Several studies¹ in mice indicate that it might. In the studies, old mice (equivalent to about a 70-year-old person) were randomly assigned to receive blood plasma either from a young mouse (equivalent to about a 25-year-old person) or another old mouse. The mice receiving the young blood showed multiple signs of a reversal of brain aging. One of the studies2 measured exercise endurance using maximum treadmill runtime in a 90-minute window. The results are given in the side-by-side boxplots in the figure below. esc Q A T option N @ 2 W S ¹Sanders L, "Young blood proven good for old brain", Science News, 185(11), May 31, 2014. 2Manisha S, et al., "Restoring Systemic GDF11 Levels Reverses Age-Related Dysfunction in Mouse Skeletal Muscle", Science, 9 May 2014. Values are estimated from summary statistics and graphs. 3 X # Old Young command 10 E 20 D $ n 30 4 C 40 R 50 Runtime F or do % 60 5 T 70 V 80 6 90 MacBook Pro G Y & 7 B H U +00 8 N J ( - 9 K M
Transcribed Image Text:cab ock Young Blood Helps Old Brains Several studies¹ in mice indicate that it might. In the studies, old mice (equivalent to about a 70-year-old person) were randomly assigned to receive blood plasma either from a young mouse (equivalent to about a 25-year-old person) or another old mouse. The mice receiving the young blood showed multiple signs of a reversal of brain aging. One of the studies2 measured exercise endurance using maximum treadmill runtime in a 90-minute window. The results are given in the side-by-side boxplots in the figure below. esc Q A T option N @ 2 W S ¹Sanders L, "Young blood proven good for old brain", Science News, 185(11), May 31, 2014. 2Manisha S, et al., "Restoring Systemic GDF11 Levels Reverses Age-Related Dysfunction in Mouse Skeletal Muscle", Science, 9 May 2014. Values are estimated from summary statistics and graphs. 3 X # Old Young command 10 E 20 D $ n 30 4 C 40 R 50 Runtime F or do % 60 5 T 70 V 80 6 90 MacBook Pro G Y & 7 B H U +00 8 N J ( - 9 K M
tab 2014. Values are estimated from summary statistics and graphs. caps lock (a) Estimate the median runtime for the mice receiving old blood. Round your answer to the nearest integer. The median runtime for the mice receiving old blood is i esc A eTextbook and Media Hint (b) Do we expect the mean runtime for the mice receiving old blood to be larger than, smaller than, or about the same as the median for these mice? Larger than the median runtime. About the same as the median runtime. OSmaller than the median runtime. ! 1 Q A I ontrol option N @ 2 W S Q # 3 X H command T E D $ 4 C R % 5 F T > minutes. MacBook Pro < 6 G Y & 7 B H 2 .a 8 J N L ( .0 9 ** K M C Ma Qu Mult 1 O O
Transcribed Image Text:tab 2014. Values are estimated from summary statistics and graphs. caps lock (a) Estimate the median runtime for the mice receiving old blood. Round your answer to the nearest integer. The median runtime for the mice receiving old blood is i esc A eTextbook and Media Hint (b) Do we expect the mean runtime for the mice receiving old blood to be larger than, smaller than, or about the same as the median for these mice? Larger than the median runtime. About the same as the median runtime. OSmaller than the median runtime. ! 1 Q A I ontrol option N @ 2 W S Q # 3 X H command T E D $ 4 C R % 5 F T > minutes. MacBook Pro < 6 G Y & 7 B H 2 .a 8 J N L ( .0 9 ** K M C Ma Qu Mult 1 O O
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