One-tailed left directional Test B One-tailed right directional Test (C) Non-tailed Test (D) Two-tailed Test
One-tailed left directional Test B One-tailed right directional Test (C) Non-tailed Test (D) Two-tailed Test
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Transcribed Image Text:(A) One-tailed left directional Test
B One-tailed right directional Test
(C) Non-tailed Test
D) Two-tailed Test
Transcribed Image Text:The Mathematics Department in a certain university is conducting a study to determine how long it takes it graduates to
find a job. A sample of 26 gra ites was surveyed and it was found that the average time it has taken a graduate to find a
new job is 3.5 months with a standard deviation of 1.5 months. Is there sufficient evidence to conclude that the graduates
of this department take on the average at most three months to find a job at 10% level of significance?
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