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Published on: 09/11/2020
12th Standard Business Maths Sampling techniques and Statistical Inference English Medium Free Online Test 1 Mark Questions with Answer Key 2020-2021
Download Tamil Nadu 12th Standard Business Maths and Statistics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Business Maths and Statistics Test
1.
A random sample of 500 apples was taken from large consignment and 45 of them were found to be bad. Then the standard error is __________
0.033
0.0128
0.0128
0.00128
2.
The Z-value that is used to establish a 95% confidence interval for the estimation of a population parameter is __________
1.28
1.65
1.96
2.58
3.
Probability of rejecting null hypothesis. when it is true is _______
Type I error
Type II error
Sampling error
Standard error
4.
The standard error of sample mean is ______.
\(\frac { \sigma }{ \sqrt { 2n } } \)
\(\frac { \sigma }{ { n } } \)
\(\frac { \sigma }{ \sqrt { n } } \)
\(\frac { { \sigma }^{ 2 } }{ \sqrt { n } } \)
5.
Type I error is ______.
Accept H0 when it is true
Accept H0 when it is false
Reject H0 when it is true
Reject H0 when it is false.
6.
If probability \(P[|\hat{\theta}-\theta|<\varepsilon] \rightarrow 1\) as \(n \rightarrow \infty\), for any positive \(\varepsilon \) then \(\hat{\theta}\) is said to ________ estimator of \(\theta\).
efficient
sufficient
unbiased
consistent
7.
An estimator is a sample statistic used to estimate a ______.
population parameter
biased estimate
sample size
census
8.
9.
Any statistical measure computed from sample data is known as _________.
parameter
statistic
infinite measure
uncountable measure
10.
A __________ of statistical individuals in a population is called a sample.
Infinite set
finite subset
finite set
entire set
1.
(b)
0.0128
2.
(c)
1.96
3.
(a)
Type I error
4.
(c)
\(\frac { \sigma }{ \sqrt { n } } \)
5.
(c)
Reject H0 when it is true
6.
(d)
consistent
7.
(a)
population parameter
8.
(a)
9.
(b)
statistic
10.
(b)
finite subset
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
