14. In a medical trial on COVID 19, there were 230 patients,78 people received treatment A81 people received treatment B63 people received treatment C46 people received treatments A and B32 people received treatments B and C31 people received treatments A and C16 people received all the treatmentsShow your solution using Venn-diagramQuestions to solve:a. How many people did not receive any of the treatments?b. How many people received treatment C only?c. How many people received treatment B only?

We have given that In a medical trial on covid-19, there were 230 patients. There are three…

Answered: 14. In a medical trial on COVID 19,…

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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If n(B) = 24, n(A ∩ B) =5, and n(A ∪ B) = 42, find n(A). 24 23 25 21
ONLY DO NO. 3 2. Jeremy, a police researcher, is concerned that police officers may not be assigned to areas where they are needed. He wishes to find out whether there is a connection between the number of police officers assigned to a particular block and the number of violent incidents reported on that block during the preceding week. For ten different blocks (designated A through J), the number of patrolling officers assigned and the number of prior violent incidents reported are as follows: A B C D E F G H I J X: Violent incidents 7 10 3 9 8 0 4 4 2 8 Y: Officers assigned 6 9 3 10 8 1 4 5 2 7 a. State the null and alternative hypothesesb. Calculate the value of Pearson's r for the data recorded above.c. Test the statistical significance if the two variables are related.d. Use MS Excel to verify your answer (copy and paste the results on your answer sheet)e. State the Decision and Conclusion 3. Using the same data in #2a. Calculate Spearman's r.b. Which of the two…
A parent downloads an app that allows him to monitor the amount of screen time his child is using on the phone. The child claims that she is only using 1 hour per day on the phone on average, but the app, over the course of 47 days, finds that the child used an average of 1.2 hours per day. The parent wants to know if the child is using an average of 1 hour per day for all days of use. a) The 1.2 is a/an: variable population parameter sample statistic observational unit b) The sample size is: 1 47 1.2 c) Each day is a/an: population parameter observational unit variable sample statistic
Every year my place of work has a huge holiday party. Every year there is a survey sent out to see how many people want to attend the party so that there is a big enough venue booked. I wanted to know if the number of people wanting to attend the annual holiday party changed this year because of COVID. In 2019, of the 406 people surveyed, 310 said that they wanted to attend. In 2020, of the 406 people surveyed, 156 said that they wanted to attend. Conduct a test at the a=0.05 level of significance. H0: p1=p2 H1: p1≠p2
3.) Sandy took a 30 question test in Algebra 2 that took her 2 hours and 27 minutes. For each free response question, she took 7 minutes to solve it. She spent 4 minutes on each multiple choice question. How many of each type of questions was on the test? a. Define your variables and label your final answer
q.6
solve
Say the football team F, the basketball team B, and the track team T, decide to form a varsity club V. How many members will V have if n(F)=25, n(B)=12, n(T)=30, and no person belongs to at least two teams?
For a survey of 120 law school students, it was found that: 60 took probate law, 90 took criminal law, and 32 took criminal law but not probate law. How many of the students took exactly one of these courses? Find the solution using a Venn diagram.

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