3. In a certain research, some astrologists have speculated that people born under certainsun signs are more extroverted than people under other signs. The Eysenck PersonalityInventory (EPI) was used to measure extroversion and neuroticism. The following dataas follows:Sun SignSample SizeExtroversionNeuroticismSDSDWater SignsOther SignsWinter SignsSummer Signs7812.804.6313.575.2519913.675.1813.435.345.228212.5815.785.3412.97534.8415.455.033.2 Do the data indicate those born underwater signs differ significantly from those bornunder other signs with respect to meanneuroticism score? Use 0.05 level ofsignificance.

The sample size for neuroticism score under water signs is 78, sample mean is 13.57, and sample…

Answered: 3. In a certain research, some…

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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Does money buy happiness? This is an age-old question. A random sample of 1993 subjects were asked to rate their happiness (Not too happy, Pretty happy, or Very happy) and also report their level of income (Above average, average, below average). The table of the observations is presented below. Income Not too happy Pretty happy Very happy Total Above Average 26 233 164 423 Average 117 473 293 883 Below Average 172 383 132 687 Total 315 1089 589 1993
3. In a certain research, some astrologists have speculated that people born under certain sun signs are more extroverted than people under other signs. The Eysenck Personality Inventory (EPI) was used to measure extroversion and neuroticism. The following data as follows: Sample Size Extroversion Neuroticism Sun Sign N SD SD Water Signs Other Signs Winter Signs Summer Signs 13.57 5.25 5.34 78 12.80 4.63 199 13.67 5.18 13.43 82 12.58 5.34 12.97 5.22 5.03 53 15.78 4.84 15.45 Is there sufficient evidence to indicate that those born under water signs have a lower mean extroversion score than those born under other (non-water) signs? 3.1. Use a level of 0.01 test. Но: На: Level of Significance: Statistical Test: Classification of Test: Degree of Freedom: Critical/Tabular Value: Computed Value:
Researchers wished to know if they could conclude that two populations of infants differ with respect to mean age at which they walked alone. The following data (ages in months) were collected: Sample from population A: Sample from population B: 9.5, 10.5, 9.0, 9.75, 10.0, 13.0, 10.0, 13.5, 10.0, 9.5, 10.0, 9.75 12.5, 9.5, 13.5, 13.75, 12.0, 13.75, 12.5, 9.5, 12.0, 13.5, 12.0, 12.0 What should the researchers conclude? Let a = .05.
please answer blank questions only and or ones with a red x next to them.
Based on the data below, answer the following question: Draw a scatter diagram that highlights the relationship between Local Tuition and Students per Faculty. The correlation coefficient indicates that the relationship between Local Tuition and Students per Faculty is _______. Select one: a. positively correlated b. not related c. negatively correlated Business School Full-Time Enrollment Students per Faculty Local Tuition ($) Foreign Tuitiion ($) English Test Work Experience Starting Salary ($) 1 Melbourne Business School 200 5 24,420 29,600 No Yes 71,400 2 University of New South Wales (Sydney) 228 4 19,993 32,582 No Yes 65,200 3 Indian Institute of Management (Ahmedabad) 392 5 4,300 4,300 No No 7,100 4 Chinese University of Hong Kong 90 5 11,140 11,140 No No 31,000 5 International University of Japan (Niigata) 126 4 33,060 33,060 Yes No 87,000 6 Asian Institute of Management (Manila) 389 5 7,562 9,000 No Yes 22,800 7 Indian Institute of Management…
Interpret and discuss the results for each table, given ? = ?. ??
find : c ) Does data provide evid. of an association between age and opinion of brand? Justify your answer.
The following table shows a sample dataset of observation values of an independent variable, Age, and a dependent variable, number of toys Age 5 3 6 3 4 4 6 8 Toys 13 15 7 12 13 11 9 5 What is the value of Toys when Age is 7 (round your answer without decimal)
The following histograms were created using the same motor fuel octane data. Compare the histograms. Do both display similar information? Histogram 8 bins: Histogram of Fuel (8 Bins) 30 20- 10- 84 87 93 96 102 Fuel Histogram 16 Bins: Histogram of Fuel (16 Bins) 18- 16- 14 12 10- 8- 6- 4- 2- 86.4 88.8 91.2 98.4 84.0 93.6 96.0 100.8 Fuel a. Yes, both give similar information. Both appear skewed on one side b. Similar even if different number of bins. Both are skewed to the right c. Not similar as each has different number of bins. But both show the mean at the center O d. Yes, both of them give similar information. The mean value is at the center and are both appear symmetric Auanbay Aouanba
The owner of Maumee Ford-Volvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year. Car Age (years) Selling Price ($000) 1 11 12.1 2 8 10.5 3 14 5.7 4 17 4.9 5 9 5.0 6 8 13.4 7 10 10.5 8 14 9.0 9 13 9.0 10 17 4.5 11 6 12.5 12 6 11.5 Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) a= b= Estimate the selling price of an 7-year-old car (in $000). (Round your answer to 3 decimal places.) Interpret the regression equation (in dollars). (Round your answer to the nearest dollar amount.)
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Which of the following data sets shows categorical data? Course Grade 72 78 85 90 98 Class Size 22 23 25 28 32 Flight Number 1002 1274 4012 5661 7812 Number of Coins 1 3 4 8 19

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