Mathematics, 29.11.2019 05:31, miyahvictoria
Announcements for 84 upcoming engineering conferences were randomly picked from the 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.
Answers: 2
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