#3EDespite Progress - Millions Without Access to EducationNumber of out-of-school children worldwide by age group, region and gender (in millions)MaleFemale23.7Primary school age18.2 21.6k...12.814.57.611.14.8 10.57.75.11 2 3 420.02000 2012 2000 2012Sub-Saharan Africa South Asia54R%5T2000 2012 2000 2012Rest of the World Sub-Saharan Africa2712.4 11.8A6Lower secondary school age9.5 10.2YWhich region showed the least amount of growth in children attending lower levelsecondary school?MacBook Pro&721.35. 616.1There are only statistics for two years shown on this chart. What do you think the author istrying to show by including information from these two different years?U12.613.72000 2012South Asia8tv18.019.6AJ2000 2012Rest of the World-7.2(7.49O)07

Statistics are has two branches, they are descriptive and inferential statistic. Descriptive…

Answered: Despite Progress - Millions Without…

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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5 3 8 Time can be expressed on different levels of scale, including days, weeks, months, and years. Can the scale provided influence perception of time? For example, if you an order over the phone, would it make a difference if you were told the package would arrive in four weeks or in one month? To investigate this, two researchers asked a group of 267 college students to imagine that their car needed major repairs and would have to stay at the shop. Depending on the group they were randomized to, the student was either told it would take 1 month or 30/31 days. Each student was then asked to give best- and worst-case estimates of when the car would be ready. The interval between these two estimates (in days) was the response. Here are the results: T Group 30/31 days S 14.3 13.9 n 20.4 177 90 1 month 24.8 Suppose you want to construct a 95% confidence interval for the difference in populations means (30/31 days minus 1 month). What would be the upper limit of the 95% confidence…
Asian economies impact some of the world's largest populations. The growth of an economy has a big influence on the everyday lives of ordinary people. Are Asian economies changing? A random sample of 15 Asian economies gave the following information about annual percentage growth rate. Region 1 2 3 4 5 6 7 8 Modern Growth Rate % 4.4 2.9 7.6 2.6 0.9 5.3 2.3 4.8 Historic Growth Rate 3.1 1.7 7.1 5.9 3.1 6.2 3.4 8.6 Region 9 10 11 12 13 14 15 Modern Growth Rate % 4.5 5.2 6.6 3.8 3.8 0.2 7.7 Historic Growth Rate 6.6 7.8 6.2 1.3 1.4 2.7 5.9 Does this information indicate a change (either way) in the growth rate of Asian economies? Use a 10% level of significance. (a) What is the level of significance? State the null and alternate hypotheses. Ho: Distributions are the same. H1: Distributions are different.Ho: Distributions are different. H1: Distributions are the same. Ho: Distributions are the same. H1: Distributions are the same.Ho: Distributions are different.…
The female life expectancy and the male life expectancy (in years) for 30 industrial countries were recorded. The data are shown in the back-to-back stemplot below. Female Life Expectancy Male Life Expectancy 68 69 69 70 18 71 72 9 8 73 0 74 9 75 12 5 68 9 76 2 2 7 789 99 77 1 2 4 5 6 7 78 0 4 5 6 7 4 1 79 2 4 2 80 988 7 7 6 6 4 1 81 8 7 5 3 3 2 82 998 32 183 84 5 85 6816 represents 68.6 years Based on the stemplot, which of the following statements is true? (A) The median life expectancy and the range of life expectancies are both less for females than for males in these countries. (B) The median life expectancy and the range of life expectancies are both greater for females than for males in these countries. (C) The median life expectancy is the same for females and males in these countries, and the range of life expectancies is the same for females and for males in these countries. (D) The median life expectancy is less for females than for males in these countries, and the range of…
1.76 Peace Corps Volunteers. The Peace Corps is an indepen- dent U.S. government agency that provides trained volunteers for countries requesting assistance. According to Peacecorps.org, as of September 2012, volunteers currently serve in about 76 different host countries. The average age of a volunteer is about 28 years old. The following table reports the percentage of total volunteers serving by geographic region. Percent of volunteers Region Africa 43% Latin America 21% Eastern Europe/Central Asia 15% Asia 10% Caribbean 4% North Africa/Middle East 4% Pacific Islands 3% a. Use the table to design a procedure for obtaining a stratified sam- ple (with proportional allocation) of 50 Peace Corps volunteers. b. If stratified random sampling with proportional allocation is used to select the sample of 50 Peace Corps volunteers, how many would be selected from the Caribbean?
Chapter 5 In preparation for your discussion post, complete the following: • Research data on the U.S. uninsured population (https://aspe.hhs.gov/sites/default/files/private/pdf/265041/trends-in-the-us- uninsured.pdf B). • Choose one condition for your discussion post about an uninsured group. (For example, In 2019, 22% of Latine individuals under age 65 were uninsured, Figure 4 p.6). For your discussion board post include all of the following: 1. Suppose six individuals, within your criteria, are randomly selected. Show or explain your thinking for each problem. (Note: This is a binomial probability from Section 5.2, they either have insurance or they do not.) A. Let having insurance be a success. State the values of your p, q, and n for your chosen condition. Explain your thinking. (For my example, if 22% do not have insurance, then that is my q (failure) value, my p=0.78, q=0.22, n-6 (6 individuals are randomly selected in this problem). B. Use excel or a T184 to determine the…
What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon.Age range, years 18-28 29-39 40-50 51-61 62 and overMidpoint x 23 34 45 56 67Percent of super shoppers 6% 47% 25% 11% 11%For the 62-and-over group, use the midpoint 67 years. (a) Compute the expected age μ of a super shopper. (Round your answer to two decimal places.)μ = (b) Compute the standard deviation σ for ages of super shoppers. (Round your answer to two decimal places.) σ=
Chi - square The age distribution of the population in Canada consists of 7.2% inhabitants of ages from 5 years old and below, 13.6% of inhabitants of ages between 6 and 14, 67.1% of inhabitants of ages between 15 and 64, and 12.1% of inhabitants of ages from 65 and above. Lately in a survey conducted on 455 residents in a native-Canadian village in the Northwest Territories (Red Lake Village), it has been counted that there are 47 children with the age of 5 or below, 75 persons with ages between 5 and 14, 288 persons with ages between 15 and 64, and 45 persons with ages of 65 years and above. a)use descriptive statistics for presenting the data b)Use a 5% level of significance to test if there is an agreement between the age distribution in Canada and the age distribution of the residents of Red Lake Village.
A psychologist believed that as children get older, they engage in more “inactive activities” such as playing computer games, watching TV and surfing the internet. She collected data from 10 children. She recorded the age of each child and the amount of activity (in hours) the child engaged in per week. Age Activity 7 4.3 9 3.2 10 1 13 1.5 12 1.2 15 0.8 9 3 12 4 15 1.5 14 1.9 Using excel, obtain a scatterplot of the data. Discuss the relationship between age and activity based on the scatterplot. Using excel, obtain the simple linear regression linear regression line predicting activity from age. Interpret the intercept and slope of the regression line. By hand, predict the amount of activity for age = 14. By hand, calculate the residual for age = 14 Using excel output, test the null hypothesis that the slope coefficient is zero using the p-value approach. Write one sentence interpreting the meaning of this result. Make sure to report the test statistic…
Asian economies impact some of the world's largest populations. The growth of an economy has a big influence on the everyday lives of ordinary people. Are Asian economies changing? A random sample of 15 Asian economies gave the following information about annual percentage growth rate. Region 1 2 3 4 5 6 7 8 Modern Growth Rate % 4.4 2.9 7.6 2.4 0.9 5.5 2.5 4.8 Historic Growth Rate 3.1 1.7 7.2 5.3 3.7 6.4 3.4 8.8 Region 9 10 11 12 13 14 15 Modern Growth Rate % 4.3 5.2 6.5 3.8 3.4 0.2 7.5 Historic Growth Rate 6.6 7.8 6.2 1.9 1.2 2.9 5.3 Does this information indicate a change (either way) in the growth rate of Asian economies? Use a 10% level of significance. Compute the sample test statistic. (Round your answer to two decimal places.) Find the P-value of the sample test statistic. (Round your answer to four decimal places.)
Chapter 5, Section 2, Exercise 051 More Information From the Online Dating Survey A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an online dating site or a dating app on their cell phone).College-Educated or Not?The survey also asked participants for their level of education, and we wish to estimate the difference in the proportion to use online dating between those with a college degree and those with a high school degree or less. The results are shown in the two-way table below. College High School Total Yes 157 70 227 No 666 565 1231 Total 823 635 1458Table 1: Have you ever used an online dating site or a dating app? (a) What proportion of college graduates answered yes when asked if they had ever used online dating? What proportion of those with a high school degree or less said yes? What is the sample difference in proportions?Let pC and pH be the…

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