Problem B:Suppose that Cities A, B and C have the following observednumber of COVID19 cases. Determine if the COVID19 cases forthese barangays are homogeneous.Which is the appropriate alternative hypothesis?CityACOVID19 cases 400B450C500O The proportions of COVID19 cases in the 3 cities are all equal.O At least two cities have equal proportions of COVID10 cases.O The proportions of COVID19 cases in the 3 cities are not all equal.O The COVID19 cases in the 3 cities are homogeneous.

Problem B Given The data is as follows: City A B C COVID19 cases 400 450 500

Answered: Problem B: Suppose that Cities A, B and…

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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From the urn of Problem 1, ten balls are selected with replacement. Color Red Blue Green BrownNumber 4 3 2 1◼ 3.1. Estimate the probability that four or less red balls are selected.◼ 3.2. Estimate the probability that more than four blue balls are selected.
We want to know if the average rating of attractiveness (1=homely, 5=stunning) of a typical person differs depending on the state they are located in. We believe that there will be significant differences in the average attractiveness of the people at each of the four states we examine. 1) Report (in words or statistical notation), our null and alternative hypothesis: Provided are the data we collected from four different states: OR, WA, ID, and CA (see below): OR WA ID CA X bar 3.01 3.07 2.88 3.7 SD 0.42 0.60 0.46 0.30 n 10 10 10 9 SS 92.19 97.47 84.84 123.95 2) Given that we have more than two samples, we need to conduct a one-way ANOVA. Conduct the test in order to calculate the F-statistic addressing our hypothesis. Be sure to calculate the grand mean and the between-groups & within-groups mean-squares first (also don’t forget to round to 2 decimal places and report the formulas!!): 3.) Calculate the degrees…
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26) A phycologist is interested in determining the proportion of algae samples from a local rivulet that belonged to a particular phylum. A random sample of 50 algae was obtained and each alga was categorized as either being cyanobacteria or not. It was found that 38 were, in fact, cyanobacteria. a) The proportion p that was cyanobacteria isA. 38B. 0.38C. 0.5D. 0.76E. 50 b) (Continue from the previous question),What is the standard error of the proportion p, i.e. S.E.(p), that were cyanobacteriaisA. 0.0036B. 0.0604C. 0.0684D. 0.1824E. None of the above
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The table below summarizes a data set regarding views on full-body scans and political affiliation. The differences in each political group may be due to chance. Complete the following computations under the null hypothesis of independence between an individual's party affiliation and his support of full-body scans. It may be useful to first add on an extra column for row totals before proceeding with the computations. -TT Party Affiliation Republican Democrat Independent Should 264 299 351 Answer Should not 38 55 77 Don't know/No answer 16 15 22 Total 318 369 450 How many Democrats would you expect to support the use of full-body scans? Round your answer to one decimal place.

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