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52 Quesstion 40 MCQS 12 Short Question Paper Time 2:00Pm PSKT01

Define Alternative Hypothesis ?

If a single 6-sided die is rolled, what is the probability of a number that is not 8?

Define Optimal Solution ?

Show that X and Y are uncorrelated by using the following table
X                       2                  4
Y                       3                  3

Some Repated MCQS from Past

No Linear Programming problem with an unbounded feasible region has a solution.
► true
► false
► may or may not
► none of these

The Excel function =POISSON (2, 5, True) is used to calculate -----------------------
-
►Normal Distribution
►Binomial Distribution
►Poisson Distribution
►Cumulative Poisson Distribution

The correlation used when there is a degree of association
► Between two variables
► Among three variables
► Among four variables
► None of these

The formula for Poisson Distribution is -------c------
------------------

( ) x (1 )n x n
P x n P P
x
−  
= =   −
 
► b*(x; r, P) = x-1Cr-1 * Pr * (1 - P)x - r

( ) , 0,1,...
!
xe
P X x x
x
μ −μ
= = =
correct
► None of the above.

n! = ………
► n (n+1) (n-2)!
► n (n-1) (n-2)!
► n (n+1) (n+2)!
► n (n-1) (n+2)!

If sign of r is negative then it indicates
► Direct relationship between X & Y
► Indirect relationship between X & Y
► X & Y equal
► X & Y are square

What do you deduce from the diagram of the Normal Distribution?
► Mean is greater than Standard deviation.
► Mean is lesser than Standard deviation.
► Mean is equal to Standard deviation.
► No result can be drawn.

The value of χ2 is always ------------------
► Positive
► Negative
► 0
► None of these

Thanks Itna he bus yaad hy 

sare ghalt solve hain es main

admin galat solution share kerne pa usko ban ker dna chaiye

Q: A group of 30 workers from production department has a mean wage of Rs.120 per day with Standard Deviation = 10. Another group of 50 Workers from Maintenance had a mean of Rs. 130 with Standard Deviation = 12.

Find the difference of two sample means.

 

Answer:

s.d+mean=x
mean =x-S.D
mean=38-12
=26
mean=38-12
=26

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