1. A social worker wants to know if socioeconomic status can be a predictor of the IQ ofpeople living in Payatas, QC. From the 3,457registered residents, he randomly selected 200residents to answer the questionnaire to know ifthere is a relationship between the two factors.A. Descriptive or InferentialB. PopulationC. SampleD. Variable/s involved (Indicate the IV &DV if possible)E. Level of measurement (Variable/s)2. The marketing head of Jollibee Corp. wants toknow the effectiveness of Jollibeeadvertisements in increasing the buyingtendency of students in OLFUQC. Among the4,756 enrolled students, 350 students wereasked to complete a likert scale test to obtain thetwo data.A. Descriptive or InferentialB. PopulationC. SampleD. Variable/s involved (Indicate the IV &DV if possible)E. Level of measurement (Variable/s)

“Since you have asked multiple question, we will solve the first question for you. If you want any…

Answered: 1. A social worker wants to know if…

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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Researchers want to estimate the percentage of people who thought drinking and driving was a serious problem. Reserchers waited outside a bar to question people. They usually find 11%of bar patrons believe drinking and driving is a serious problem. a. identify the populatin of interest b. identify the sample c. identify the population parameter of interest d. identifywho if anyone was left out of the study
b. The offensive line of a football team is larger than in previous years. The program will list a statistic to show this fact. Mean Median Mode ►
How much time do Americans living in or near cities spend waiting in traffic, and how much does waiting in traffic cost them per year? The file “congestion.xlsx” includes this cost for 31 cities. For the time Americans living in or near cities spend waiting in traffic and the cost of waiting in traffic per year: (Please see the excel file. It is in the same location with this question file). a. Compute the mean, median, first quartile, and third quartile. (Use Excel -Data Analysis to solve this problem) b. Compute the range, interquartile range, variance, standard deviation, and coefficient of variation. (Use Excel -Data Analysis to solve this problem) c. Construct a boxplot. Are the data skewed? If so, how? d. Compute the correlation coefficient between the time spent sitting in traffic and the cost of sitting in traffic. e. Based on the results of (a) through (c), what conclusions might you reach concerning the time spent waiting in traffic and the cost of waiting in traffic.…
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A. Population ? B. Population mean ? C. Median ? F. IQR ? G. Population standard deviation ?H. population variance ?
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The table to the right gives the cost of living index (COLI) for six East Coast counties and six Midwest counties (using an index where 100 represents the average cost of living for all A participating cities with a population of more than 1.5 million). Answer parts (a) through (e) below. B a. Find the mean, median, and range for each of the two data sets. The mean for the East Coast Counties is (Type an integer or decimal rounded to two decimal places as needed.) EUCEY с D F East Coast Counties 104.9 128.7 314.2 134.1 123.5 141.1 DYWXYN Midwest Counties 96.2 92.7 94.4 87.3 95.8 228.3
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