Answered: Anticipating Brand Shift in Soft Brink…

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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Please solve Question number 8

Transcribed Image Text:customer satisfaction and have administered it to interior decor? 8. Anticipating Brand Shift in Soft Drink Market: The soft drink market in India is controlled by two leading companies – Coca cola and Pepsi. Coca cola is concerned that a sizeable number of its customers may shift to Pepsi because of an aggressive advertisement campaign launched by it. In order to (541) 7 QAM601 ossess the anticipated brand shift, the researchers at Coca cola have prepared a questionnaire to measure customers. The questionnaire consisted of 10 questions on a five-point rating scale with 1 rated as "strongly disagree" and 5 rated as "strongly agree". The / questionnaire has been administered to 10 randomly selected customers of Coca cola and 12 randomly selected customers of Pepsi. To know whether at = .05, there is difference in mean scores obtained from customers in the population, the researchers conducted a two sample t-Test, and found the following results. Two Sample T-Test and CI: Coca cola, Pepsi Two-sample T for Coca cola vs Pepsi Company A Company B 10 12 Mean 39.50 32.67 StDev 1.58 2.06 SE Mean 0.50 0.59 Difference = u (Coca cola) - µ (Pepsi) Estimate for difference: 6.83333 95% CI for difference: (5.17237, 8.49430) |T-Test of difference = 0 (vs not = 0 ): T-Value = 0.000 Pooled StDey = 1.8597 8.58,p-Value %3D DF = 20 (a) State the hypotheses used for reaching to these results. (b) Write the formula of the test statistic used for computation. Р.Т.О. (541) 8 QAM601 (c) Interpret the result obtained in the above tabl and arrive at a statistical conclusion and busines implication. Environtech Engineering, a company that specialize in the construction of antipollution filtration devices,

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