Question
A random sample of 12 subjects was asked to perform a given task. The time in seconds it took each of them to complete the
A random sample of 12 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is
28,37,47,34,42,48,44,30,49,29,27,48
If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task.
Give Lower limit and upper limit of 95% confidence interval.
Carry your intermediate computations to at least 3 decimal places. Round your answer to 1 decimal place
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Statistics Informed Decisions Using Data
Authors: Michael Sullivan III
5th Edition
978-0134135373, 134133536, 134135377, 978-0134133539
