(a) For mice in this sample on a standard light/dark cycle, what is the average percent of food con- sumed during the day? What percent is con- sumed at night? What about mice that had dim light at night? (b) Is there evidence that light at night influences when food is consumed by mice? Justify your answer with a p-value. Can we conclude that there is a cause-and-effect relationship?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
8.35 When Calories Are Consumed Researchers
hypothesized that the increased weight gain seen in
mice with light at night might be caused by when
the mice are eating. (As we have seen in the previ-
ous exercises, it is not caused by changes in amount
of food consumed or activity level.) Perhaps mice
with light at night eat a greater percentage of their
food during the day, when they normally should be
sleeping. Conditions for ANOVA are met and com-
puter output for the percentage of food consumed
during the day for each of the three light conditions
is shown.
Level
e
DM
LD
LL
N
10
Light
Error
Total
8
9
Mean
55.516
36.028
76.573
One-way ANOVA: DayPct versus Light
Source
DF
MS
2
24
26
St Dev
10.881
8.403
9.646
SS
6987.0
2304.3
9291.2
3493.5
96.0
F
36.39
P
0.000
(a) For mice in this sample on a standard light/dark
cycle, what is the average percent of food con-
sumed during the day? What percent is con-
sumed at night? What about mice that had dim
light at night?
(b) Is there evidence that light at night influences
when food is consumed by mice? Justify your
answer with a p-value. Can we conclude that
there is a cause-and-effect relationship?
8:36 Glucose Tolerance We have seen that light at
Descripti
Variable
GTT-120
(a) Wh
izat
dat
(b) De
GT
(c) Us
obt
anc
Cle
sign
aff
8.37 T
sure E
sample
of the
numbe
and Sc
to scho
The da
(a) Us
for
the
WH
(b) Us
WE
(c) WH
8.38 T
Transcribed Image Text:8.35 When Calories Are Consumed Researchers hypothesized that the increased weight gain seen in mice with light at night might be caused by when the mice are eating. (As we have seen in the previ- ous exercises, it is not caused by changes in amount of food consumed or activity level.) Perhaps mice with light at night eat a greater percentage of their food during the day, when they normally should be sleeping. Conditions for ANOVA are met and com- puter output for the percentage of food consumed during the day for each of the three light conditions is shown. Level e DM LD LL N 10 Light Error Total 8 9 Mean 55.516 36.028 76.573 One-way ANOVA: DayPct versus Light Source DF MS 2 24 26 St Dev 10.881 8.403 9.646 SS 6987.0 2304.3 9291.2 3493.5 96.0 F 36.39 P 0.000 (a) For mice in this sample on a standard light/dark cycle, what is the average percent of food con- sumed during the day? What percent is con- sumed at night? What about mice that had dim light at night? (b) Is there evidence that light at night influences when food is consumed by mice? Justify your answer with a p-value. Can we conclude that there is a cause-and-effect relationship? 8:36 Glucose Tolerance We have seen that light at Descripti Variable GTT-120 (a) Wh izat dat (b) De GT (c) Us obt anc Cle sign aff 8.37 T sure E sample of the numbe and Sc to scho The da (a) Us for the WH (b) Us WE (c) WH 8.38 T
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman