20MA215 & PROBABILITY AND STATISTICS - Surprise Test II (2024-25)
Authored by sowmiya subbaiyan
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12 questions
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1.
OPEN ENDED QUESTION
30 sec • Ungraded
Name of the Student
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2.
OPEN ENDED QUESTION
30 sec • Ungraded
Register Number
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
n-1
(n_1-1,n_2-1)
(n_2-1,n_1-1)
n_1+n_2-2
Option 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a random sample of 9 women, the average resting pulse rate is 76 beats per minute and the sample SD is s = 5. Then the standard error of the sample mean is
0.557
0.745
1.667
2.778
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Goodness of fit of a distribution is tested by________
t-test
F-test
Chi-square test
z-test
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
F-test is used to test the significant difference between ______
proportions
means
standard deviation
variances
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