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# Hypothesis Testing: Single Population Parameter

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Analyze the definition and application of correlation coefficient using real questions in the attached document.

https://brainmass.com/statistics/parametric-tests/hypothesis-testing-single-population-parameter-correlation-coefficient-597469

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10. Yes, it indicates a linear relation between two variables because all points are close to the trend single line. It also indicates a ...

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The solution gives detailed steps on analyzing the definition and application of correlation coefficient using real questions.

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## Hypothesis Testing: Types of Samples

PROBLEM:

Target wants to maintain adequate supplies of various brands of mouthwash to meet the on-going demands of its customers. Target wants to estimate the proportion of its customers who favor the country's leading brand of mouthwash, Scope. Are the data convincing evidence that something other than the historical 13% prefer Scope? Use a significance level of 0.02 (2%).

A) Is this a 1-sample, paired sample, or 2 independent samples situation?
B) Describe the population(s).
C) Describe the parameter(s) involved in the hypothesis test.
D) Give HA, using proper mathematical symbols & notation.
E) Give H0.
F) Suppose the statistical conclusion is "reject H0". Give the summary statement for the hypothesis test.

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