1.3 A random set of boys and girls who formed part of a sociology experimentconducted at the University of Cape Town, are observed to respond differently toa specified situation. Their response rates are reflected in Table 1.Table 1: Response ratesResponse Type Females Males(Girls)50%(Boys)Good60%The experimental group of 50 kids, 20 boys and 30 girls aged between 6 and 10years old, was exposed to these specified settings, and they were requested todescribe their responses on a digital survey. A random response selected fromthe 50 kids was bad. Determine whatthe probability was that it was boy?

The two by two contingency table represents two classifications of a set of counts or frequencies.…

Answered: 1.3 A random set of boys and girls who…

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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18. A recent study indicates that people tend to select vid- eo game avatars with characteristics similar to those of their creators (Bélisle & Onur, 2010). Participants who had created avatars for a virtual community game completed a questionnaire about their personalities. An independent group of viewers examined the ava- tars and recorded their impressions of the avatars. One personality characteristic considered was introverted/ extroverted. The following table shows frequency distribution of personalities for participants and the avatars they created. Participant Personality Introverted Extroverted Introverted Avatar 22 23 45 Extroverted Avatar 16 39 55 38 62 a. Is there a signilicant relationship between the per- sonalities of the participants and the personalities of their avatars? Test with a=.05. b. Compute the phi-coelficient to measure the size of the effect.
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Part 1 of 4 The restaurants of a fast food chain are primarily located in three regions of Arizona. The CEO of the chain wants to know if the average monthly revenue of the restaurants in each region are equal. The monthly revenues (in thousads of dollars) for this past month of the restaurants in each of the three regions are given below. Conduct an ANOVA test using a 5% level of significance to determine whether or not the average monthly revenues in the three regions are equal. Monthly Revenues of Restaurants in Region 1: 179, 183.3, 156.8, 155.1, 253, 105.4, 219, 134.3, 119.9, 193.1, 188.5, 188.4 Monthly Revenuse of Restaurants in Region 2: 158.7, 175.2, 187.8, 187.1, 118.1, 179.5, 195.1, 199.7, 349.6, 226.5, 253.7, 287.4, 172.8, 290.5, 149 Monthly Revenuse of Restaurants in Region 3: 215.4, 199.8, 360.7, 273, 250, 214.2, 144.5, 165, 137, 187.6 Step 1: State the null and alternative hypotheses. Ho: P1 = P2 = H3 Ha: At least one mean isn't equal to the other means v Part 2 of 4 Step…
Since first year students reported at the University of Nairobi, a shop attendant at students hall of residence has noticed an increase in sales of fanta soda. As a statistician and market analyst, you would wish to know if there is relationship between soda preference and year level of study at the University of Nairobi. A random sample of 200 students was taken. Their year level and soda preference are given in the table. Soda/Year of study Fist Year Second Year Соса cola 33 57 Fanta 30 20 Spirit 5 35 Stoney 12 8 Based on this information, obtained the Chi-square calculated in 2 decimal places
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