The following data represent the pH of rain for a random sample of 12 rain dates in
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(a) Determine a point estimate for the population mean pH of rainwater in Tucker County.
(b) Construct and interpret a 95% confidence interval for the mean pH of rainwater in Tucker County, West Virginia.
(c) Construct and interpret a 99% confidence interval for the mean pH of rainwater in Tucker County, West Virginia.
(d) What happens to the interval as the level of confidence is increased? Explain why this is a logical result.
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Am Ongeri Cosmas a graduate from Egerton University in 2017 with Bachelors of Science in Education Sciences (Biology and chemistry). I had a second class upper division after studying for four years, I chose teaching profession because in my desire to change the face of the community by helping the young one on education matters. More importantly, I joined this profession because am of the class of thought that education in every possible way is one of the fundamental factors of development. I strongly believe educating the society is the most powerful weapon one can use to transform the world.
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Related Book For 
Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
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