Question # 1

The values of test statistic which separate the rejection and non rejection regions for the test are called

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simple values

critical values

parametric values

none of these

A specific value of an estimator computed from the sample data is called

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estimation

estimate

interval estimate

point estimate

1 MB equals _________byes

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1,094,265

1,904,265

1,048.576

A set of points in a rectangular coordinate system, where each point represents an observed pair of values is called

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least square regression

scatter diagram

pie graph

regression coefficient

A data points falling along a straight line is called______.

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Linear relationship

Non-linear relationship

Linear positive

Scatter diagram

If mean of the sampling distribution is equal to the parameter then the estimator will be

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biased

consistent

sufficient

unbiased

If X and Y are independent, then Cov(x,y) = 0 which implies that

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b_yx = 0

b_xy = 0

ρ = 0

a = 0

A statistic on the basis of which a decision is made about the hypothesis of interest is called

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critical region

test statistic

parameter

rejection region

P ( | Z | > a) =

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2ø(a) - 1

ø(a)

2 ø (-a)

1-ø(a)

Commonly used input device is

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pen

keyboard

monitor

joystick

The probability density function has ------------------ value for every value of x.

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negative

positive

minimum

maximum

For normal distribution mean always lies between.

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Median and mode

Median and Q₁

Median and Q₃

None of these

The power of the test is equal to:

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α

1 - α

β

1 - β

The least squares estimates are unbiased estimates of the

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statistic

time series

parameters

variance

Confidence intervals which are often used in practice are

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90%

95%

98%

all of these

In normal distribution.

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Mean > median > mode

Mean = median = mode

Mean < median < mode

None of these

If b_yx = 0.89 and b_xy = 0.75, then r=

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0.89

0.28

0.98

0.82

A binary digit is commonly called:

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Byte

Kilobyte

Gigabyte

Bit

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