(d) Assume that a certain dimension is measured on four successive items coming of a production line. This sample gives x = 2.384 and s = 0.7. (i) On the basis of this sample, what is the 85% confidence interval for the true mean? (ii) If instead of estimating the standard deviation from a sample, we knew the true standard deviation was 0.7, what then would be the 85% confidence interval for the true mean? (iii) Suppose that we wanted the total width of the two-sided confidence interval on mean to be 97% confidence with true standard deviation 0.7 and maximum error of + 0.45. What sample size should be used?

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A: From the provided information, The area to the left of the normal distribution curve is 0.37.

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A: For the median arrange the number in ascending order Look that whether the number of observation are...

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A: Formula for midrange: Midrange=Maximum value+Minimum value2 Given observations 5, 4, 7, 6, 8, 5. Max...

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A:

Q: Choose the answer

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Q: 15-24: Presidential Elections. The following tables give the popular and electoral votes. For the tw...

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Q: Based on the definition, identify whether the data described is a parameter or a statistic.

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Q: 5

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A: Given:

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.