Reactivate04.3. The following data are derived from the Monthly Vital Statistics Report issued by the NationalCenter for Health Statistics in October 1999.Suppose that infants are classified as low birthweight if they have a birthweight less than 2500 gand as normal birthweight if they have a birthweight greater than or equal to 2500 g. Supposethat infants are also classified by length of gestation in the following five categories: less than 28weeks, 28-31 weeks, 32-35 weeks, 36 weeks, and more than 36 weeks. Assume theprobabilities of the different periods of gestation are as given in the accompanying table.Length of gestationLess than 28 weeksProbability0.00728-31 weeks0.01232-35 weeks0.05036 weeks0.038More than 36 weeks0.893Table 3. Distribution of length of gestationAlso, assume that the probability of low birthweight is 0.949 given a gestation of less than 28weeks, 0.702 given a gestation of 28 - 31 weeks, 0.434 given a gestation of 32 - 35 weeks,0.201 given a gestation of 36 weeks, and 0.029 given a gestation of more than 36 weeks.What is the total probability of having a low birthweight infant?

Probability of an event is the chances of occurrence of the event and its value lies between 0 and…

Answered: 3. The following data are derived from…

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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Advertising aimed at teenagers tends to contain dance-beat music, adventure, and a fast pace rather than words. To test to see how teenagers respond to different types of commercials, 150 teenagers then watched a set of commercials with dance-beat music, adventure, and a fast pace. After the commercials, the teenagers were asked whether they would want to buy the product and 102 responded that they would buy the product. Another sample of 125 teenagers where shown a set of commercialscomprised primarily of words. After the commercials, the teenagers were asked whether they would buy the product and 60 responded that they would like to buy the product. Based on both samples, at the 5% level of significance, test the hypothesis that there is at least a 10% difference in the proportion of teenagers who would buy the product after watching the different types of commercials?
1. EA Sports is interested in how much money, on average, their customers spend on in- game items. Using their records, they draw a sample of 10,000 customers and calculate each customer's average spending on in-game items. B. What kind of data is "amount of money spent on in-game items per customer"? qualitative Explain quantitative-continuous quantitative-discrete
Consider the following examples of populations,together with the variable/characteristic measured on each population unit. a. Population: Accountability reports by State Universities and Colleges and Government Owned and Controlled Corporations submitted to the Commission on Audit.Variable: Total Disbursements REQUIRED: i. classify the variable ofinterest as either qualitative or quantitative,ii. determine the correspondinglevel of measurement of the variable.iii. Name another variable that canbe measured or observed from the population.
The table reports the number of weekly death according to age groups and their total for the past ten weeks. The information is retrieved from: https://covidnow.mohgov.my/cases Count of Weekly Death According to Age Groups Time Weekly Death 17 & below 60 & above 18-59 10 weeks ago 72162 10 247 516 9 weeks ago 8 weeks ago 57788 6 160 442 47017 133 382 7 weeks ago 6 weeks ago 5 weeks ago 4 weeks ago 3 weeks ago 2 weeks ago 1 week ago 39522 3 108 329 38265 1 87 291 34163 79 287 39831 2 74 233 39613 78 235 35121 83 209 34661 2 76 197 QUESTIONS: a. Use a scatter diagram and describe the trend in the TOTAL weekly death due to Covid- 19 for the past ten weeks, focusing on the overall ten weeks and the most recent month. b. Based on the reported number of cases within the most recent month (most recent four weeks), forecast the TOTAL death for next week using an appropriate technique for this data set. Explain why you use this technique to predict the total death for next week? Choose between…
Classify each of the following as nominal, ordinal, interval, or ratio data (adapted from [Black 2012]). a. The time required to produce each tire on an assembly line b. The number of quarts of milk a family drinks in a month c. The ranking of four machines in your plant that have been designated as excellent, good, satisfactory, and poor d. The telephone area code of clients in the US e. The age of each of your employees f. The dollar sales at the local pizza shop each month g. An employee's identification number h. The response time of an emergency unit
3
b) The table below shows the number of photocopies made by Kenyatta University students at three locations around campus according to level of study. Please study it and answer the questions that follow. Photocopying location Shopping Center Level of study Main Cybercafé Kiwanja Market First Year 130 300 190 Second Year 1160 250 150 Third Year 210 210 170 Fourth Year 230 210 240 i) Calculate the percentage of photocopies made by students at each level of study and at each location. ii) Calculate the probability that a randomly chosen photocopying was done by a fourth year student at Kiwanja Market. iii) Given that photocopying was done at the Main Cybercafé, what is the probability that it was done by a first year student?
5. What are the values of the five-number summary for the following data set in order from least to greatest? 1077, 1063, 1112, 1123, 1044, 1041, 1087, 1045, 1097, 1001, 1064, 1101, 1018, 1073, 1114 1001, 1044, 1073, 1101, 1123 1001, 1041, 1064, 1077, 1123 1018, 1045, 1077, 1112, 1114 O 1001, 1042.5, 1073, 1106.5, 1123
Construct simple average price relative index number using geometric mean for the year 2015 for the data showing the expenditure in education of the children taking different courses. Expenditure per year 2014 2015 B.Sc 24000 26000 B.Com 20000 22000 B.E 108000 12000 M.B.B.S 150000 168000
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The average time that Italy commute to work is 23.15 minutes (Best 4 Tourist Places, June 15, 2020). The average commute times in minutes for 18 cities are given in Table 3.1. Table 3.1 City Time (minutes) Rome 24.9 Milan 26.8 Naples 26.2 Turin 28.1 Palermo 31.7 Genoa 25.8 Bologna 23.3 Florence 32.1 Bari 28.5 Catania 24.4 Verona 29.3 Venice 24.8 Messina 38.1 Padua 28.3 Trieste 28.4 Taranto 24.6 Prato 20.1 Modena 23.4 1) What is the mode for these 18 cities? 2) Find 28th and 77th Percentile of commute times for these 18 cities.
Q. 8 What type of Index numbers are usually calculated?

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