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Yes Dear...  well this is alsofor final term plz check it,,,thnks faheem,,,this is good efforts,,,keep it up frnd,,,, Attachments:

Good

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jazakallah

bhai plzzzz mgt 611 k papers plz solved papers dhond dain

ok as Soon as possible i will post Mgt 611 papers

i am having one stats301 unsolved file..... can u pls solve it for me ?????

ma bht tens hn mgt 611 k papers ni milty

kahin sa b oper sa mid ka paper mery  khyal sa acha hua tha but marks bilkul bht km thy pt ni usy kesy clear krna ha

i really worry for it.

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FINALTERM EXAMINATION Fall 2009

STA301- Statistics and Probability

Question No: 1    ( Marks: 1 )     - Please choose one

Time: 120 min

Marks: 70

In measures of relative dispersion unit of measurement is:

► Changed

► Vanish

► Does not changed

► Dependent

Question No: 2    ( Marks: 1 )     - Please choose one

The location of the critical region depends upon:

► Null hypothesis

► Alternative hypothesis

► Value of alpha

► Value of test-statistic

Question No: 3    ( Marks: 1 )     - Please choose one

The

F-distribution always ranges from:

► 0 to 1

► 0 to -∞

► -∞ to +∞

► 0 to +∞

Question No: 4    ( Marks: 1 )     - Please choose one

In chi-square test of independence the degrees of freedom are:

► n - p

► n - p-1

► n - p- 2

► n – 2

Question No: 5    ( Marks: 1 )     - Please choose one

For a particular data the value of Pearson’s coefficient of skewness is greater then zero. What will be the shape of distribution?

► Negatively skewed

► J-shaped

► Symmetrical

► Positively skewed

Question No: 6    ( Marks: 1 )     - Please choose one

If X

 Y

E  X

and Y are random variables, then

is equal to:

 E(Y

E  X )

 E(Y

E  X )

 E  Y

X

 Y

E  X

Question No: 7    ( Marks: 1 )     - Please choose one

If ŷ is the predicted value for a given x-value and b is the y-intercept then the equation of a regression line for an independent variable x and a dependent variable y is:

►  ŷ = mx + b, where m = slope

►  x = ŷ + mb, where m = slope

►  ŷ = x/m + b, where m = slope

►  ŷ = x + mb, where m = slope

Question No: 8    ( Marks: 1 )     - Please choose one

The

Chi- Square distribution is continuous distribution ranging from:

► -∞ ≤ χ2≤ ∞

► -∞ ≤χ2 ≤1

► -∞ ≤χ2 ≤0

► 0 ≤ χ2≤ ∞

Question No: 9    ( Marks: 1 )     - Please choose one

The variance of the t-distribution is give by the formula:

 2

 2

 2

 2

 2

 1

 2

 2

2

Question No: 10    ( Marks: 1 )     - Please choose one

Which one is the correct formula for finding desired sample size?

 .

 2

 Z

 2

 e

n

 .

 2

 Z

 2

 e

n

 .X

 2 Z

 2

 e

n

 .

Z

n

 2

e

Question No: 11    ( Marks: 1 )     - Please choose one

A

discrete probability function f(x) is always:

► Non-negative

► Negative

► One

► Zero

Question No: 12    ( Marks: 1 )     - Please choose one

E(4X + 5) =_____    _

► 12 E (X)

► 4 E (X) + 5

► 16 E (X) + 5

► 16 E (X)

Question No: 13    ( Marks: 1 )     - Please choose one

How P(X + Y < 1) can be find:

► f(0, 0) + f(0, 1) + f(1, 2)

► f(2, 0) + f(0, 1) + f(1, 0)

► f(0, 0) + f(1, 1) + f(1, 0)

► f(0, 0) + f(0, 1) + f(1, 0)

Question No: 14    ( Marks: 1 )     - Please choose one

The

f   x |1

___   _   __:

f  1,1

f   x,1

f   x,1

h 1

f   x,1

h  x

Question No: 15    ( Marks: 1 )     - Please choose one

The area under a normal curve between 0 and -1.75 is

► .0401

► .5500

► .4599

► .9599

Question No: 16    ( Marks: 1 )     - Please choose one

In

normal distribution M.D. =

► 0.5

► 0.75

► 0.7979

► 0.6445

Question No: 17    ( Marks: 1 )     - Please choose one

In

an ANOVA test there are 5 observations in each of three treatments.  The degrees of freedom in the numerator and denominator respectively are.......

► 2, 4

► 3, 15

► 3, 12

► 2, 12

Question No: 18    ( Marks: 1 )     - Please choose one

A set that contains all possible outcomes of a system is known as

►             Finite Set

►             Infinite Set

►             Universal Set

►             No of these

Question No: 19    ( Marks: 1 )     - Please choose one

Stem

► Equal to 100

► Greater Than 100

► Less than 100

► In all situations

Question No: 20    ( Marks: 1 )     - Please choose one

A

population that can be defined as the aggregate of all the conceivable ways in which a specified event can happen is known as:

► Infinite population

► Finite population

► Concrete population

► Hypothetical population

Question No: 21    ( Marks: 1 )

If E(T )

, what do you say about the estimator T, where        is a parameter ?

Question No: 22    ( Marks: 2 )

What is a binomial experiment?

Question No: 23    ( Marks: 3 )

Formulate the null and alternative hypothesis in each of the following.

(1) Average domestic consumption of electricity is 50 units per month.

(2) Not more than 30% people pay Zakat (tax).

Question No: 24    ( Marks: 3 )

What is mathematical expectation of discrete random variable?

Question No: 25    ( Marks: 3 )

Why we prefer to use pooled estimator

pˆ c

Question No: 26    ( Marks: 3 )

Question No: 27    ( Marks: 5 )

A

random sample of size n is drawn from normal population with mean 5 and variance        . Answer the following:

If s=15,  x =14 and t=3, what is values of n?

Question No: 28    ( Marks: 5 )

A

population 2, 4, 6, 8, 10, 12

N=6,    n=2

 2

After drawing possible samples, we have calculated sampling mean

 7

ux

and

 ,          b)     2 x                                                 x

a)

n

 2       5.83 x

 3

sampling variance                      . Verify

Question No: 29    ( Marks: 5 )

Given the Probability density function

.

 ,

x

f  x       2

for 0    x    2

 2

0,    elsewhere

Compute the distribution function F(x).

Question No: 30    ( Marks: 10 )

A research worker wishes to estimate the mean of a population using a sample sufficiently large that the probability will be 0.95 that the sample mean will not differ from the true mean by more than 25 percent of the standard deviation. How large a sample should be taken?

An urn contains nine balls; five of them are red and four blue. Three balls are drawn without replacement. Find the distribution of X= number of red balls drawn.

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god bless u