A survey of 75 people with jobs at a mall was conducted to determine whether they workedin retail. The two-way table below shows the responses by gender.RetailNon-retailTotalMale261844Female26531Total522375Which of the following best describes the association between type of employment andgender?A) There appears to be no association, since the same number of men and women areworking in retail.B) There appears to be an association, since more than half of the people have jobs in retail.C) There appears to be an association, since there are more men than women in the survey.D) There appears to be an association, since the proportion of women having retail jobs ismuch larger than the proportion of men having retail jobs.E) An association cannot be determined from these data.

A survey of 75 people with jobs at a mall was conducted to determine whether they worked in retail…

Answered: Which of the following best describes…

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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2 1. A Statistics class reports the following data on Sex and Eye Color for students in the class: Blue Brown Green/Hazel/Other Total Males 8 20 Females 4 Total a. Compare the overall percent of students who are female to the percent of females with each eye color. ↑ 16 # 3 b. Make a side-by-side bar chart to show the distribution of sex for the different colors. 6 C. Does it seem that eye color and sex are independent? Explain. с 12 4 % 5 DELL Oll A 6 O 7 *00 8
1. A researcher is interested in choice and decisions. He looks at what people buyfor lunch in a university cafeteria. Which of the following best describes the data hecollects? a. He collects favorite lunch meal which is qualitative. He also collects data on how often each person buy that meal, which is also qualitative data. b. He collects how often participants buy their favorite meal, and this is a form of quantitative data.c. He asks participants to name their most frequently purchased meal, and this is qualitative data.d. He asks participants to tell him how many times a week they skip lunch because of their work, and this is qualitative data.
The income of residents of Chicago, IL has a bell shaped and symmetric histogram, with a mean of $65,000 and a S.D. of $13,000. 1) What percentage of residents have an income more than $78,000 or less than $52,000? 2) what percentage of residents have an income between $39,000 and $91,000? 3) What percentage of residents have an income less than $104,000? 4) What percentage have an income more than $65000? 5) Less than $26,000 Hint: you need to draw a curve for each part 1-4, and calculate the mean ± 1, 2, 3 S.D.
A sample of 296 students at a university is surveyed. The students are classified according to gender ("female" or "male"). They are also classified according to major ("biology", "business", "engineering", "mathematics", or "computer science"). The results are given in the contingency table below. Biology Business Engineering Mathematics Female 33 30 22 45 Male 24 43 26 16 Among all the students in the sample, what is the relative frequency of male computer science majors? Round your answer to two decimal places. 1 X Computer science 41 16 Españ Aa
Is there a relation between incidents of child abuse and number of runaway children? A random sample of cities (over 10,000 population) gave the following information about the number of reported incidents of child abuse and the number of runaway children. (Reference: Federal Bureau of Investigation, U.S. Department of Justice.) City 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Abuse cases 113 33 41 60 52 99 31 56 15 67 106 59 45 74 84 Runaways 648 188 285 687 421 590 284 277 162 473 600 432 317 580 592 Use a 1% level of significance to test the claim that there is a monotone-increasing relationship between the ranks of incidents of abuse and number of runaway children. (a) Rank-order abuse using 1 as the largest data value. Also rank-order runaways using 1 as the largest data value. Then construct a table of ranks to be used for a Spearman rank correlation test. City Abuse CasesRank x RunawaysRank y d = x - y d2 123456789101112131415 Σd2 = (b) What is the level of…
8) In the US, 4.5% of the population identifies as lesbian, gay, bisexual, or transgender (see, for instance, this report). In the UK, the LGBT community accounts for 1.5% of the population. Which of the following can be inferred from the given information? a) The number of LGBT individuals in the US is greater than that in the UK. b) The proportion of LGBT individuals in the US is 3% greater than the proportion of LGBT individuals in the UK. c) The proportion of LGBT individuals in the UK is 3% less than that in the US. d) The proportion of LGBT individuals in the UK is 200% greater than that in the US. e) The proportion of LGBT individuals in the US is 200% greater than that in the UK.
23. Andrews Middle School has gathered data for their students' transportation to and from school. Method of Transportation Female Male Bus 94 102 Car 38 32 Walk 40 44 What is the frequency of students, in total, who ride a bus to and from school? O The frequency of students who ride the bus cannot be determined using the data in the table. 196 students 94 0.92(100) = 92%of students 102 102 students

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