Homework Help is Here – Start Your Trial Now!
Math
Statistics
9.72 Eggshell quality in laying hens. Introducing calcium into a hen's diet can improve the shell quality of the eggs laid. One way to do this is with a limestone diet. In Animal Feed Science and Technology (June 2010), researchers investi- gated the effect of hen's age and limestone diet on eggshell quality. Two different diets were studied–fine limestone (FL) and coarse limestone (CL). Hens were classified as either younger hens (24–36 weeks old) or older hens (56–68 weeks old). The study used 120 younger hens and 120 older hens. Within each age group, half the hens were fed a fine limestone diet and the other half a coarse limestone diet. Thus, there were 60 hens in each of the four combinations of age and diet. The characteristics of the eggs produced from the laying hens were recorded, including shell thickness. a. Identify the type of experimental design employed by the researchers. b. Identify the factors and the factor levels (treatments) for this design. c. Identify the experimental unit. d. Identify the dependent variable. e. The researchers found no evidence of factor interac- tion. Interpret this result, practically. f. The researchers found no evidence of a main effect for hen's age. Interpret this result, practically. g. The researchers found statistical evidence of a main ef- fect for limestone diet. Interpret this result, practically. (Note: The mean shell thickness for eggs produced by hens on a CL diet was larger than the corresponding mean for hens on an FL diet.)

9.72 Eggshell quality in laying hens. Introducing calcium into a hen's diet can improve the shell quality of the eggs laid. One way to do this is with a limestone diet. In Animal Feed Science and Technology (June 2010), researchers investi- gated the effect of hen's age and limestone diet on eggshell quality. Two different diets were studied–fine limestone (FL) and coarse limestone (CL). Hens were classified as either younger hens (24–36 weeks old) or older hens (56–68 weeks old). The study used 120 younger hens and 120 older hens. Within each age group, half the hens were fed a fine limestone diet and the other half a coarse limestone diet. Thus, there were 60 hens in each of the four combinations of age and diet. The characteristics of the eggs produced from the laying hens were recorded, including shell thickness. a. Identify the type of experimental design employed by the researchers. b. Identify the factors and the factor levels (treatments) for this design. c. Identify the experimental unit. d. Identify the dependent variable. e. The researchers found no evidence of factor interac- tion. Interpret this result, practically. f. The researchers found no evidence of a main effect for hen's age. Interpret this result, practically. g. The researchers found statistical evidence of a main ef- fect for limestone diet. Interpret this result, practically. (Note: The mean shell thickness for eggs produced by hens on a CL diet was larger than the corresponding mean for hens on an FL diet.)

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
See similar textbooks
icon
Related questions
Question

d, e, and f

9.72 Eggshell quality in laying hens. Introducing calcium into a hen's diet can improve the shell quality of the eggs laid. One way to do this is with a limestone diet. In Animal Feed Science and Technology (June 2010), researchers investi- gated the effect of hen's age and limestone diet on eggshell quality. Two different diets were studied–fine limestone (FL) and coarse limestone (CL). Hens were classified as either younger hens (24–36 weeks old) or older hens (56–68 weeks old). The study used 120 younger hens and 120 older hens. Within each age group, half the hens were fed a fine limestone diet and the other half a coarse limestone diet. Thus, there were 60 hens in each of the four combinations of age and diet. The characteristics of the eggs produced from the laying hens were recorded, including shell thickness. a. Identify the type of experimental design employed by the researchers. b. Identify the factors and the factor levels (treatments) for this design. c. Identify the experimental unit. d. Identify the dependent variable. e. The researchers found no evidence of factor interac- tion. Interpret this result, practically. f. The researchers found no evidence of a main effect for hen's age. Interpret this result, practically. g. The researchers found statistical evidence of a main ef- fect for limestone diet. Interpret this result, practically. (Note: The mean shell thickness for eggs produced by hens on a CL diet was larger than the corresponding mean for hens on an FL diet.)
Transcribed Image Text:9.72 Eggshell quality in laying hens. Introducing calcium into a hen's diet can improve the shell quality of the eggs laid. One way to do this is with a limestone diet. In Animal Feed Science and Technology (June 2010), researchers investi- gated the effect of hen's age and limestone diet on eggshell quality. Two different diets were studied–fine limestone (FL) and coarse limestone (CL). Hens were classified as either younger hens (24–36 weeks old) or older hens (56–68 weeks old). The study used 120 younger hens and 120 older hens. Within each age group, half the hens were fed a fine limestone diet and the other half a coarse limestone diet. Thus, there were 60 hens in each of the four combinations of age and diet. The characteristics of the eggs produced from the laying hens were recorded, including shell thickness. a. Identify the type of experimental design employed by the researchers. b. Identify the factors and the factor levels (treatments) for this design. c. Identify the experimental unit. d. Identify the dependent variable. e. The researchers found no evidence of factor interac- tion. Interpret this result, practically. f. The researchers found no evidence of a main effect for hen's age. Interpret this result, practically. g. The researchers found statistical evidence of a main ef- fect for limestone diet. Interpret this result, practically. (Note: The mean shell thickness for eggs produced by hens on a CL diet was larger than the corresponding mean for hens on an FL diet.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS