Number ofNumber of patientslesions Cholestyramine group Placebo group64GAONTO3578>10Total5465784649 0067260246697524857You have a choice between Poisson and negative binomial distributions,as possible models for the number of lesions in the cholestyraminegroup. Using the x²-test check which distribution better fits the data(e.g., results in smaller chi-square statistic).For the negative binomial use r=4 and p = 0.44, and for the Poisson useλ = 4.6. Setup: Calculate the theoretical probability of each number of lesions for each group usingeach distribution. Make a table containing the observed and expected data from each group. Hint:the table should have 7 columns - 3 for each group and one for the number of lesions. Youshould then have two plots, each with a histogram and two lines on it.Calculation: Calculate the chi-square values as necessary to assess which distribution bestfits each data set.Interpretation: Decide which distribution better fits each group.

To compare which distribution (Poisson or negative binomial) better fits the data for the…

Answered: Setup: Calculate the theoretical…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Draw a box plot for the data set with the statistics in the picture
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Cloud seeding, a process in which chemicals such as silver iodide and frozen carbon dioxide are introduced by aircraft into clouds to promote rainfall was widely used in many years. Recent research has questioned its effectiveness. An experiment as performed by randomly assigning 52 clouds to be seeded or not. The amount of rain generated was then measured in acre-feet. The box plot of the data for the seeded and unseeded clouds are shown in the figure. Which statement best interprets the box plot. Boxplot of Seeded, Unseeded 3000 f 2500어 2000 - 1500 - 1000 - 500- Seeded Unseeded a. Cloud seeding is somewhat effective in promoting rainfall because of the greater mean b. Outliers for both seeded and unseeded data may prove data on the effectiveness of cloud seeding is insufficient c. Extreme outliers are evident in the seeded data and has greater variance O d. There's a greater mean and greater dispersion in the seeded data. Both plots show outliers Data
A County Board of Supervisors has appointed an urban planning committee to evaluate proposed community development projects. The committee is analyzing, among other things, data on household incomes in two cities within the county. They have collected data on the income of 77 households in each of the two cities. The histograms below show the distributions of the two sets of incomes (in thousands of dollars). Each histogram shows household income on the horizontal axis and number of households on the vertical axis. The means and standard deviations for the data sets are also given. City A City B 25+ 20+ 15+ 10+ 5- ← 10 20 30 40 50 60 70 80 90 100 City A mean: 73.96 thousand dollars City A standard deviation: 20.30 thousand dollars Explanation 25- 20- 15- 104 5+ 10 (a) Identify the data set for which it is appropriate to use the Empirical Rule. It is appropriate to use the Empirical Rule for the (Choose one) ▼ data set. 20 30 The committee wants to use the Empirical Rule to make some…
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