A cancer laboratory is estimating the rate of tumorigenesis in two strains
Ask Expert

Be Prepared For The Toughest Questions

Practice Problems

A cancer laboratory is estimating the rate of tumorigenesis in two strains

3. A cancer laboratory is estimating the rate of tumorigenesis in two strains of mice, A and B. They have tumor counts for 10 mice in strain A and 13 mice in strain B. Type A mice have been well studied, and information from other laboratories suggests that type A mice have tumor counts that are approximately Poisson-distributed with mean 12. Tumor count rates for type B mice are unknown, but type B mice are related to type A mice. The observed tumor counts for the two populations are

YA = (12, 9, 12, 14, 13, 13, 15, 8, 15,6);

YB = (11, 11, 10, 8, 8, 8, 7, 10, 6, 8, 8, 9,7).

Hints: R code

>y. A <- c(12, 9,12,14,13, 13, 15, 8, 15, 6) 

>y. B <- c(11,11,10, 8, 8, 8, 7,10, 6, 8, 8, 9, 7)

Assume a Poisson sampling distribution for each group and the prior distribution:


Hint
StatisticsA Poisson sampling distribution has the following characteristics: the probability of an event happening in a given time, area, distance and volume is the same, each of the events is independent of all other events. A Poisson sampling distribution tests if a statement about a population parameter is true....

Know the process

Students succeed in their courses by connecting and communicating with
an expert until they receive help on their questions

1
img

Submit Question

Post project within your desired price and deadline.

2
img

Tutor Is Assigned

A quality expert with the ability to solve your project will be assigned.

3
img

Receive Help

Check order history for updates. An email as a notification will be sent.

img
Unable to find what you’re looking for?

Consult our trusted tutors.

Developed by Versioning Solutions.