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Given the information: the sampled population is normally distributed, = 10.4, n = 60, and = 81.2. a. Find the 98% confidence interval for b. Interpret the confidence interval in Where do i begin
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We have calculated a 95% confidence interval for a proportion and would prefer the confidence interval to be more precise, that is narrower. Using the same sample, we can narrow the confidence interval using which of the
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Refer to Table 1 in the article “Snail Shells in a Practical Application of Statistical Procedures” in the Electronic Reserve Readings. Find the margin of error, E, with a confidence interval of your choosing (5099%). What is
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A random sample of 90 observations produced a mean that = 25.9 and a standard deviation s =2.4 (a)Find a 95% confidence interval for u (b)Find a 90% confidence interval for u (c)Find a 99% confidence interval for u (Use integers
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12.22 A regression was performed using data on 16 randomly selected charities in 2003. The variables were Y = expenses (millions of dollars) and X = revenue (millions of dollars). (a)Write the fitted regression equation.
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