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41. Standard error of mean defined as,
The standard deviation of the sampling distribution of the mean
Average of the sampling distribution of the mean
Inter-Quartile range of sampling distribution of means.
Correlation coefficient between the sampling distribution of the mean.
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42. Probability of rejecting the null hypothesis when it is true is called
Type-II error
Type-I error
Standard error
None of these
43. 'Parameter' refers to the characteristics of the
Population
Sample
Mean
None of the above
44. Which of the following is not a restricted random sampling technique?
Stratified sampling
Simple random sampling
Systemic sampling
Multistage sampling
45. Which test we normally apply for qualitative data?
"t" test
"f " test
X2 Chi-square test
"V" test
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