Homework7.4: Problem 3 (1 point) The scientific productivity of major world citi

Question

Homework7.4: Problem 3 (1 point) The scientific productivity of major world cities was the subject of a recent study. The study determined the number of scientific papers published between 1994 and 1997 by researchers from each of the 20 world cities, and is shown below of papers City Number of papers 12 18 27 ity 1 City 2 City 313 City 4 22 City 5 City 6 3 2 24 27 City 8 City 9 Ciy 20 17 construct a 90 % confidence interval for the average number of papers published in major world cites b and Wi

Explanation / Answer

The statistical software output for this problem is:

One sample T confidence interval:
? : Mean of variable

90% confidence interval results:

Hence,

90% confidence interval will be:

10.709 < ? < 17.991

Variable Sample Mean Std. Err. DF L. Limit U. Limit Number of Papers 14.35 2.1054753 19 10.709354 17.990646

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