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This set of Quantitative Techniques Multiple Choice Questions & Answers (MCQs) focuses on Quantitative Techniques Set 3
Q1 | If r = 1, the angle between the two regression lines is.........................
- Ninety degree
- Thirty degree
- Zero degree
- Sixty degree
Q2 | If r = 0, the two regression lines are:
- Coincident
- Parallel
- Perpendicular to each other
- None of these
Q3 | If bxy and byx are two regression coefficients, they have:
- Same signs
- Opposite signs
- Either a or b
- None of the above.
Q4 | If byx > 1, then bxy is:
- Greater than one
- Less than one
- Equal to one
- Equal to zero
Q5 | If X and Y are independent, the value of byx is equal to ........................
- Zero
- One
- Infinity
- Any positive value
Q6 | The property that both the regression coefficients and correlation coefficient have samesigns is called................................
- Fundamental property
- Magnitude property
- Signature property
- None of these
Q7 | The property that byx > 1 implies that bxy < 1 is known as .....................
- Fundamental property
- Magnitude property
- Signature property
- None of these
Q8 | If X and Y are independent, the property byx = bxy = 0 is called ...................
- Fundamental property
- Magnitude property
- Mean property
- Independence property
Q9 | The Correlation coefficient between two variables is the ........................... of theirregression coefficients.
- Arithmetic mean
- Geometric mean
- Harmonic mean
- None of these
Q10 | If the correlation coefficient between two variables, X and Y, is negative, then theregression coefficient of Y on X is.............................
- Positive
- Negative
- Not certain
- None of these
Q11 | The G M of two regression coefficients byx and bxy is equal to ..........................
- R
- r2
- 1 – r2
- None of these
Q12 | If one regression coefficient is negative, the other is ...............................
- 0
- – ve
- +ve
- Either a or b
Q13 | Arithmetic mean of the two regression coefficients is:
- Equal to correlation coefficient
- Greater than correlation coefficient
- Less than correlation coefficient
- Equal to or greater than correlation coefficient
Q14 | byx is the regression coefficient of the regression equation.....................
- Y on X
- X on Y
- Either a or b
- None of these
Q15 | bxy is the regression coefficient of the regression equation.....................
- Y on X
- X on Y
- Either a or b
- None of these
Q16 | In ..................... regression analysis, only one independent variable is used to explain thedependent variable.
- Multiple
- Non-linear
- Linear
- None of these
Q17 | The regression coefficient and correlation coefficient of the two variables will be thesame if their .............................are same.
- Arithmetic mean
- Standard deviation
- Geometric mean
- Mean deviation
Q18 | The idea of testing of hypothesis was first set forth by ..........................
- R A Fisher
- J Neyman
- E L Lehman
- A Wald
Q19 | By testing of hypothesis, we mean:
- A significant procedure in Statistics
- A method of making a significant statement
- A rule for accepting or rejecting hypothesis
- A significant estimation of a problem.
Q20 | Testing of hypothesis and ......................are the two branches of statistical inference.
- Statistical analysis
- Probability
- Correlation analysis
- Estimation
Q21 | ......................... is the original hypothesis
- Null hypothesis
- Alternative hypothesis
- Either a or b
- None of these
Q22 | A null hypothesis is denoted by...........................
- H0
- H1
- NH
- None of these
Q23 | An alternative hypothesis is denoted by...........................
- H0
- H1
- AH
- None of these
Q24 | Whether a test is one sided or two sided, depends on........................
- Simple hypothesis
- Composite hypothesis
- Null hypothesis
- Alternative hypothesis
Q25 | A wrong decision about null hypothesis leads to:
- One kind of error
- Two kinds of errors
- Three kinds of errors
- Four kinds of errors