A dog groomer is often asked if small dogs bark more than larger dogs. To test this, he logs the number of separate barking episodes per day for three size dogs: small, medium, and large. In a separate file you will find the number of barking episodes for 12 dogs. a. What are the independent and dependent variables in this study? b. On average, which size dog barked the most? Report the mean. c. On average, which size dog barked the least? Report the mean.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
1. A dog groomer is often asked if small dogs bark more than larger dogs. To test this, he logs the number of separate barking episodes per day for three size dogs: small, medium, and large. In a separate file you will find the number of barking episodes for 12 dogs.
a. What are the independent and dependent variables in this study?
b. On average, which size dog barked the most? Report the mean.
c. On average, which size dog barked the least? Report the mean.
d. Do the different size dogs bark a significantly different number of times? Test with an α = 0.05.
e. If appropriate, use Tukey’s HSD post hoc test and report where the differences are. If inappropriate, state why.
f. Calculate and interpret the effect size.
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