Question 1

Testing of hypotheses Ho : ? = 65 vs. H1 : ? < 65, is a ...................test.

Accepted Answer

A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these 
A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these A

Question 2

Student's t-test was designed by ............................

Accepted Answer

A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset 
A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset D

Question 3

Accepting a null hypothesis when it is true is called................................

Accepted Answer

A) Type I error 
B) Type II error 
C) Probable error 
D) No error 
A) Type I error 
B) Type II error 
C) Probable error 
D) No error D

Question 4

Z test was designed by .......................................

Accepted Answer

A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset 
A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset

Question 5

...............refers to the number of independent observations which is obtained by subtracting the number of constraints from the total number of observations.

Accepted Answer

A) Sample size 
B) Degree of freedom 
C) Level of significance 
D) Level of confidence 
A) Sample size 
B) Degree of freedom 
C) Level of significance 
D) Level of confidence

Question 6

The range of F ratio is ........................................

Accepted Answer

A) - 1 to + 1 
B) - ? to ? 
C) 0 to ? 
D) 0 to 1 
A) - 1 to + 1 
B) - ? to ? 
C) 0 to ? 
D) 0 to 1

Question 7

While testing a hypothesis, if level of significance is not mentioned, we take ................... level of significance.

Accepted Answer

A) 1% 
B) 2% 
C) 5% 
D) 10% 
A) 1% 
B) 2% 
C) 5% 
D) 10%

Question 8

1 - Level of confidence =.............................

Accepted Answer

A) Level of significance 
B) Degree of freedom 
C) Either a or b 
D) None of these 
A) Level of significance 
B) Degree of freedom 
C) Either a or b 
D) None of these

Question 9

Testing of hypotheses Ho : ? = 85 vs. H1 : ? > 85, is a ...................test.

Accepted Answer

A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these 
A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these

Question 10

Testing of hypotheses Ho : ? = 65 vs. H1 : ? ? 65, is a ...................test.

Accepted Answer

A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these 
A) One sided left tailed test 
B) One sided right tailed test 
C) Two tailed test 
D) None of these

Question 11

When sample is small,....................... test is applied.

Accepted Answer

A) t-test 
B) Z test 
C) F test 
D) None of these 
A) t-test 
B) Z test 
C) F test 
D) None of these

Question 12

Z test was designed by ........................................

Accepted Answer

A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset 
A) R A Fisher 
B) Wilcoxon 
C) Wald wolfowitz 
D) W S Gosset

Question 13

Total number of observations - number of constraints =......................

Accepted Answer

A) Level of significance 
B) Degree of freedom 
C) Level of confidence 
D) Sample size 
A) Level of significance 
B) Degree of freedom 
C) Level of confidence 
D) Sample size

Question 14

Type II error is denoted by....................................

Accepted Answer

A) Alpha 
B) Beta 
C) Gamma 
D) None of these 
A) Alpha 
B) Beta 
C) Gamma 
D) None of these

Question 15

Student's t-test is applicable when:

Accepted Answer

A) The values of the variate are independent 
B) The variable is distributed normally 
C) The sample is small 
D) All the above 
A) The values of the variate are independent 
B) The variable is distributed normally 
C) The sample is small 
D) All the above

Question 16

The level of probability of accepting a true null hypothesis is called........................

Accepted Answer

A) Degree of freedom 
B) Level of significance 
C) Level of confidence 
D) D, 
A) Degree of freedom 
B) Level of significance 
C) Level of confidence 
D) D,

Question 17

Which type of error is more severe error:

Accepted Answer

A) Type I error 
B) Type II error 
C) Both a and b 
D) None of these 
A) Type I error 
B) Type II error 
C) Both a and b 
D) None of these

Question 18

The probability of rejecting a true null hypothesis is called.......................

Accepted Answer

A) Degree of freedom 
B) Level of significance 
C) Level of confidence 
D) None of these 
A) Degree of freedom 
B) Level of significance 
C) Level of confidence 
D) None of these

Question 19

Testing of hypotheses Ho : ? = 45 vs. H1 : ? > 45 when the population standard deviation is known, the appropriate test is:

Accepted Answer

A) t-test 
B) Z test 
C) Chi-square test 
D) F test 
A) t-test 
B) Z test 
C) Chi-square test 
D) F test

Question 20

Level of significance is the probability of................................

Accepted Answer

A) Type I error 
B) Type II error 
C) Both a and b 
D) None of these 
A) Type I error 
B) Type II error 
C) Both a and b 
D) None of these

Testing of hypotheses Ho : ? = 65 vs. H1 : ? < 65, is a ...................test.

Student's t-test was designed by ............................

Accepting a null hypothesis when it is true is called................................

Z test was designed by .......................................

...............refers to the number of independent observations which is obtained by subtracting the number of constraints from the total number of observations.

The range of F ratio is ........................................

While testing a hypothesis, if level of significance is not mentioned, we take ................... level of significance.

1 - Level of confidence =.............................

Testing of hypotheses Ho : ? = 85 vs. H1 : ? > 85, is a ...................test.

Testing of hypotheses Ho : ? = 65 vs. H1 : ? ? 65, is a ...................test.

When sample is small,....................... test is applied.

Z test was designed by ........................................

Total number of observations - number of constraints =......................

Type II error is denoted by....................................

Student's t-test is applicable when:

The level of probability of accepting a true null hypothesis is called........................

Which type of error is more severe error:

The probability of rejecting a true null hypothesis is called.......................

Testing of hypotheses Ho : ? = 45 vs. H1 : ? > 45 when the population standard deviation is known, the appropriate test is:

Level of significance is the probability of................................

Correlation Analysis and Coefficient of Correlation

Correlation and Regression Analysis

Regression and Hypothesis Testing

Statistics and Quality Control

Statistics and Statistical Analysis

Statistics and Probability

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

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Exam 4: Hypothesis Testing and Statistical Errors

Testing of hypotheses Ho : ? = 65 vs. H1 : ? < 65, is a ...................test.

Student's t-test was designed by ............................

Accepting a null hypothesis when it is true is called................................

Z test was designed by .......................................

...............refers to the number of independent observations which is obtained by subtracting the number of constraints from the total number of observations.

The range of F ratio is ........................................

While testing a hypothesis, if level of significance is not mentioned, we take ................... level of significance.

1 - Level of confidence =.............................

Testing of hypotheses Ho : ? = 85 vs. H1 : ? > 85, is a ...................test.

Testing of hypotheses Ho : ? = 65 vs. H1 : ? ? 65, is a ...................test.

When sample is small,....................... test is applied.

Z test was designed by ........................................

Total number of observations - number of constraints =......................

Type II error is denoted by....................................

Student's t-test is applicable when:

The level of probability of accepting a true null hypothesis is called........................

Which type of error is more severe error:

The probability of rejecting a true null hypothesis is called.......................

Testing of hypotheses Ho : ? = 45 vs. H1 : ? > 45 when the population standard deviation is known, the appropriate test is:

Level of significance is the probability of................................

Correlation Analysis and Coefficient of Correlation

Correlation and Regression Analysis

Regression and Hypothesis Testing

Statistics and Quality Control

Statistics and Statistical Analysis

Statistics and Probability

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

Filters