The Mechanical Foundation reports that the average cost
of project maintenance is 24,388.
To see if the average cost of maintenance is different at a
particular project, a researcher selects a random sample of 37
projects and found that the average cost of their maintenance
is 24,842.
The standard deviation of the population is $2,432.
Find the calculated value of Ζ in order to make
a decision based on a given critical value (Use 3
decimals).
The Mechanical Foundation reports that the average cost of project maintenance is 24,388. To see if the average cost of
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