Explore BrainMass

Statistics: Measures of central tendency - constructing confidence interval

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

1.Given the data set

Values of X


A. Calculate the mean.
B. Calculate the median.
C. Calculate the mode.
D. Calculate the range.
E. Calculate the variance.
F. Calculate the coefficient of variation
G. Calculate the coefficient of variation.
H. Calculate the standard error of the mean.
I. Construct a 95% confidence interval.

2. Given the following data, construct a 95 percent confidence interval:
statistic: (X with line over it), S, n, a
Value:113, 15,9,.05

3. Given the following data, construct a 90 percent confidence intreval

Statistic: (X with line over it), S, n, a
Value: 100,10,16, .10

© BrainMass Inc. brainmass.com October 25, 2018, 9:30 am ad1c9bdddf


Solution Summary

Given the following data, construct a 95 and 90 percent confidence interval.

See Also This Related BrainMass Solution

Choosing a method to measure central tendency

All of the full questions (including methods to measure central tendency) are in the attached document.

View Full Posting Details