jessieeverett432

15.04.2020 • 

Mathematics

A 90% confidence interval is created for the proportion of consumers which prefer your product over the competitors. This interval is found to be 46% to 64%. a. Using this interval, is it correct to say with 90% confidence that more consumers prefer your product? Explain your reasoning. You are a dishonest statistician and want to ensure that you can say more consumers prefer your product than they do a competitor’s b. What are two ways that you can manipulate these results to get a more favorable outcome which according to the data is statistically correct, (i.e. not just lying)?

Ответ:

cece4874

16.10.2020

Mathematics

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We can solve these equations by using substitution method where you substitute one equation to the other and solve for the value of the other variable. We do as follows:

y = 2x^2
y = –3x −1

 2x^2 = –3x −1
 2x^2 +3x +1 = 0

x1= -0.5
x2 = -1
y1 = 0.5
y2 = 2 

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