Mathematics, 10.06.2021 16:20 Jgrant7485
A company sells their product in Canada and the United States. They wonder if people in both countries will respond similarly to a new advertisement for the product. They show the ad to a sample of 20 Canadians and a separate sample of 20 Americans. Here is a summary of the responses in each sample and the results from a chi-squared test: Chi-square test: Response vs. country Canada US Positive 115 Expected 8.0 8.0 Neutral 6 5 Expected 5.5 5.5 Negative 3 10 Expected 6.5 6.5 x = 6.110, DF = 2, P-value = 0.047 Assume that all conditions for inference were met. At the a=0.05 significance level, what is the most appropriate conclusion to draw from this test? Choose 1 This is convincing evidence of an association between the responses and these countries. This isn't enough evidence to say there is an association between the responses and these countries. This is convincing evidence that the responses differ between these countries. D This isn't enough evidence to say that the responses differ between these countries. Living in one of these countries causes people to respond differently.
Answers: 3
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12 3 4 5 6 7 8 9 10 time remaining 42: 01 ryan gathered data about the age of the different dogs in his neighborhood and the length of their tails. which best describes the strength of the correlation, and what is true about the causation between the variables?
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