The Editor's Report in the November 2003 issue of Technometrics provides the followinginformation regarding the length of time taken to review articles that were submitted forpublication during the year 2002. A few articles took loanger than 9 months to review, theseare omitted from the table.Time (months)0<1Number of Articles451-<217183-<4191214137-<8228<911Construct a histogram for these data.b. Which class interval contains the median review time?Which class interval contains the first quartile of the review times?a.C.d. Which class interval contains the third quartile of the review times?

Answered: Image /qna-images/answer/5645b97e-f398-48a0-9eb4-96561a28346b.jpg

Answered: The Editor's Report in the November…

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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40 30 20 10 0 00 : 00000 -1.00 00000 -0.75 3. A statistics student seeking part-time employment as a New York City cab driver is trying to decide between driving a yellow cab or a green cab and examines tip amounts to help in making the decision. Using data from the New York City Taxi & Limousine Commission (http:// www.nyc.gov/html/tlc/html/about/trip_record_data.shtml), the stu- dent examines tip amounts from 25 randomly selected green cab fares and tip amounts from 25 randomly selected yellow cab fares. Graphs and summary statistics of the sample data from green cabs (G) and yellow cabs (Y) are shown. Green Cab ooooooooo000 Yellow Cab oooooooooooo 우1 -0.50 88.8. COCO 2 - 3 -0.25 4 5 Amount of Trip 0.go null = 0 Source: http://www.nyc.gov/html/tlc/html/about/trip_record_data.shtml Because each sample includes outliers, a two-sample t-test for H₁ a difference in means is not appropriate to test the hypotheses: Ho: MG My = 0, Ha:MG My # 0. The student simulates a distri- µy bution of…
20. Represent the following data by means of histogram. Weekly wages No. of workers Weekly wage No. of workers 7 30 40 40 -60 60 80 10-15 19 12 15-20 12 27 20-25 8 15 25-30
4. Which of the following factors has the highest positive correlation with life expectancy in some countries in Asia? Why do you think this factor has the highest correlation with life expectancy? Use the data below. World Happiness Report 2016 (Cantril Ladder (0=worst; 10=best))*** Vegetable supply Life expectancy (years)* Average annual hours worked by each person** per person Country (kilograms per year)**** Cambodia 69.3 103.0 4.6 30.3 Hong Kong 84.5 91.0 5.4 129.9 India 69.2 89.0 4.0 79.9 Japan Myanmar Philippines South Korea Sri Lanka 84.3 73.0 5.9 91.1 66.6 102.0 4.2 82.8 71.0 90.0 5.6 62.6 82.6 86.0 5.9 197.1 76.6 81.0 4.3 49.8 Taiwan 80.1 83.0 6.4 117.8 Thailand 76.7 91.0 5.9 39.9 Turkey 77.2 77.0 5.6 254.1 Vietnam 75.2 91.0 5.2 170.5
Answer the following questions. 1. Explain the terms 'classification and tabulation' and point out their importance in a statistical study. Comment on, 'Tabular presentation does not add anything to the information already contained in the data'.
(a) The data given below are the number of complains recoreded per day by a credit carddivision of the bank. Day 1 2 3 4 5 6 7 8 9 10 No. of Complains 4 1 3 5 4 3 3 2 11 3 Develop an appropriate control chart and interpret whether the number of compliantsrecorded by the credit card division is in control. If not, what is your suggestion to thecredit card division of that bank. (b) A supply chain engineering group monitors shipments of materials through thecompany distribution network. Errors on either the delivered material or theaccompanying documentation are tracked on a weekly basis. Six randomly selectedshipments are examined each week and the errors per sample (per shipment) are recordedfor the seven weeks as given below. No. of defects per sample: 12, 13, 18, 17, 14, 30, 11 Set up a u control chart to monitor this process. Comment the control chart?
The original data set is in the picture and the question parts needs to be answered as well for the original data set. Read and answer carefully and correctly. Compute the mean, median, and mode for the data. Show your complete work. (b) Compute a 5% trimmed mean for the data, and compare it with the mean computed in part (a). Does the trimmed mean more accurately reflect the general level of the daily rental costs? If 5 will be added to each cost of condominiums, what will be the mean, median and mode? If each cost of condominium will be added by 10 and multiplied by 2, what will be the mean, median and mode?
Suppose the observational units in a study are the patients arriving at an emergency room on a given day, Nov 11, 2019. Number of patients that arrive before noon is a qualitative variable is a quantitative variable is not a variable
What is the relative frequency? Give your answer to two decimal places.
The following are the course grades of a statistics student (in order of performance) from his first year of study: 3, 4, 4, 1, 5, 5, 2, 3, 4. Does the material prove that the student's academic success improved (measured in course grades) as the first academic year progressed?
You may need to use the appropriate appendix table or technology to answer this question. Older people often have a hard time finding work. A research group reported on the number of weeks it takes a worker aged 55 plus to find a job. The data on number of weeks spent searching for a job is given in the table below. (a) Provide a point estimate of the population mean number of weeks it takes a worker aged 55 plus to find a job. ———Weeks (b) At 95% confidence, what is the margin of error? (Round your answer to four decimal places.) ———Weeks (c) What is the 95% confidence interval estimate of the mean? (Round your answers to two decimal places.) ————-Weeks to ————- weeks.
Suppose you are planning to make an account about the study habits of ESTA3041 students. What are the cases in this study?
3. Eight different aged patients are tested on their sugar levels in a laboratory to know whether there is any relationship between the age and blood sugar level. Using appropriate method, analyze the following data and give your comments on the same. Patients 10 15 20 25 30 35 40 45 Blood- 70 85 110 180 125 100 180 120 Sugar level

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