What critical value t* from Table C would you use for a confidence interval for the mean of the population in each of the following situations? (If you have access to software, you can use software to determine the critical values. Round your answers to three decimal places.) (a) A 95% confidence interval based on n = 18 observations.

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Q: Find a 95% confidence interval for a mean, µ, where n = 324, x̄ = 2.7, s = .91, and se = .06.

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Q: If n=28, ¯x=46x¯=46, and s=7, find the margin of error at a 95% confidence level Give your answer…

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Q: f n is 500, x is 200, and E= 0.05, what is the upper limit of the confidence interval for the…

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Q: calculate a 95% confidence interval for the population mean body temperature, based on the sample…

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Q: Answer part b

A: Solution Weight can be written in fraction

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Q: A-2. A recent survey shows that the proportion of international students in the undergraduate…

A: Given that  p=20%=0.20  95% C.I=(18%=0.18 , 22%=0.22) p-E=0.18 0.20-E=0.18 E=0.20-0.18=0.02

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A: From the provided information, The table can be constructed as:

Q: now find the 99% confidence interval given the same information, x=13

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