# Question

Refer to Exercise 9.23. Suppose the researchers conjectured that the new medications caused an increase in fat content and that this increase accumulated as the medication was continued in the dogs. How could we examine this question using the data given?

In exercise

Researchers conducted a study of the effects of three drugs on the fat content of the shoulder muscles in labrador retrievers. They divided 80 dogs at random into four treatment groups. The dogs in group A were the untreated controls, while groups B, C, and D received one of three new heartworm medications in their diets. Five dogs randomly selected from each of the four groups received treatment for periods varying from 4 months to 2 years. The percentage of fat content of the shoulder muscles was determined and is given here.

In exercise

Researchers conducted a study of the effects of three drugs on the fat content of the shoulder muscles in labrador retrievers. They divided 80 dogs at random into four treatment groups. The dogs in group A were the untreated controls, while groups B, C, and D received one of three new heartworm medications in their diets. Five dogs randomly selected from each of the four groups received treatment for periods varying from 4 months to 2 years. The percentage of fat content of the shoulder muscles was determined and is given here.

## Answer to relevant Questions

The article “ The Ames Salmonell/ Microsome Mutagenicity Assay: Issues of Inference and Validation” [ Journal of American Statistical Association (1989) 84: 651– 661] discusses the importance of chemically induced ...In an experiment with t = 4 populations means, consider the four linear combinations of those means. l1 = μ1 – μ2 + μ3 + μ4 l2 = μ1 + μ2 – μ4 l3 = μ1 + μ2 + μ3 + μ4 l4 = μ1 + μ2 –μ3 + μ4 a. Which of the ...For each of the following values for p^ and n, compute a 99% confidence interval for the population proportion p using both the standard large- sample procedure and the WAC adjusted procedure. Comment on whether the WAC ...Refer to Exercise 10.16. Assuming that equal sample sizes will be taken from the two populations, how large a sample should be taken from each of the populations to obtain a 99% confidence interval for πA – πB with a ...List the characteristics of a multinomial experiment.Post your question

0