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23.01.2020_EPGP-12_SEC-C_QT_QUIZ-02
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Started on
Thursday, 23 January 2020, 9:32 PM
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Finished
Completed on
Thursday, 23 January 2020, 9:40 PM
Time taken
8 mins 29 secs
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out of 10.00 (
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%)
The assembly time to build a computer is
normally distributed
with a mean of 60 minutes and a standard
deviation of
10 minutes. What is the probability that a randomly chosen computer is assembled in at most 60 minutes?
Select one:
a. 1
b. 0.984
c. 0.735
d. 0.5
The correct answer is: 0.5
If we want to provide a 95% confidence interval for the population mean, how likely the interval will not contain the
population mean?
Select one:
a. 0.95
b. 0.05
c. 0.025
d. 1.96
The correct answer is: 0.05
If a test is rejected at 1% level of significance,
Select one:
a. it cannot be rejected at 5% level of significance
b. it can be rejected at 5% level of significance

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- Summer '19
- Normal Distribution, Standard Deviation, Correct Answer, following statements