This exercise is based on the following information, gathered from student testing of a statistical software package. Students were asked to complete certain tasks using the software, without any...


This exercise is based on the following information, gathered from student testing of a statistical software package. Students were asked to complete certain tasks using the software, without any instructions. The results were as follows. (Assume that the time for each task is normally distributed.)






























Task

Mean Time (minutes)

Standard Deviation
Task 1: Descriptive Analysis of Data113
Task 2: Standardizing Scores12.411
Task 3: Poisson Probability Table7.30.9
Task 4: Areas under Normal Curve95

Assuming that the time it takes a student to complete each task is independent of the others, find the probability that a student will take at least 9 minutes to complete each of Tasks 1 and 2. (Round your answers to four decimal places.)

Task 1 =

Task 2 =


Jun 07, 2022
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