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Question: Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal.
a. In words, define the random variables X and X ¯ .
b. Which distribution should you use for this problem? Explain your choice.
c. Construct a 95% confidence interval for the population mean length of engineering conferences.
i. State the confidence interval.
ii. Sketch the graph.
iii. Calculate the error bound
Create a histogram for these ages.- Create a stem-and-leaf plot for these ages. - Create a dotplot for these ages.
To complete this assignment, you will need to refer to the YouTube links in the Announcements section of the homepage. You will need to set aside at least an hour for listening and analyzing the music as outlined below.
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