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Researchers wanted to compare the effectiveness of a water softener used with a filtering process with a water softener used without filtering. Ninety locations were randomly divided into two groups of equal size. Group A locations used a water softener and the filtering process, while group B used only the water softener. At the end of three months, a water sample was tested at each location for its level of softness. (Water softness was measured on a scale of 1 to 5, with 5 being the softest water.)
The results were as follows:
x1-bar= 2.1
s1 = 0.7
x2-bar = 1.7
s2 = 0.4
This data will be used to test the claim that there is a difference between the two types of treatments.
What are the hypotheses for this test?
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Reflect on emotional intelligence principles and strategies to justify your proposed actions.
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What techniques would you recommend for identifying competitors within an industry? Original Answers please
Your company is a major development firm in the southeast. The company specializes in designing and construction retirement communities throughout the United States. One of the biggest expenses for the company is the cost of project management team t..
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