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Question No: 3 ( Marks: 1 ) - Please choose one The value of χ^2 can never be : ► Zero ► Less than 1 ► Greater than 1 ► Negative Question No: 4 ( Marks: 1 ) - Please choose one The curve of the F- distribution depends upon: ► Degrees of freedom ► Sample size ► Mean ► Variance Question No: 5 ( Marks: 1 ) - Please choose one If X and Y are random variables, then
E X Y
is equal to: ►
E X ) E Y (
E X ) E Y (
X E Y
E X Y
Question No: 6 ( Marks: 1 ) - Please choose one In testing hypothesis, we always begin it with assuming that: ► Null hypothesis is true ► Alternative hypothesis is true ► Sample size is large ► Population is normal Question No: 7 ( Marks: 1 ) - Please choose one
Poisson distribution P(x) = the mean value is : ► 2 ► 5 ► 10 ► 0. Question No: 8 ( Marks: 1 ) - Please choose one When two coins are tossed simultaneously, P (one head) is: ►
Question No: 9 ( Marks: 1 ) - Please choose one From point estimation, we always get: ► Single value ► Two values ► Range of values ► Zero Question No: 10 ( Marks: 1 ) - Please choose one The sample variance 2 S^2 (^ x^ x ) n
is: ► Unbiased estimator of
^2
for independence in a contingency table with 3 rows and 4 columns, there are ________ degrees of freedom. ► 5 ► 6 ► 7 ► 12 Question No: 16 ( Marks: 1 ) - Please choose one The F- test statistic in one-way ANOVA is: ► SSW / SSE ► MSW / MSE ► SSE / SSW ► MSE / MSW Question No: 17 ( Marks: 1 ) - Please choose one The continuity correction factor is used when: ► The sample size is at least 5 ► Both nP and n (1-P) are at least 30 ► A continuous distribution is used to approximate a discrete distribution ► The standard normal distribution is applied Question No: 18 ( Marks: 1 ) - Please choose one A uniform distribution is defined by: ► Its largest and smallest value ► Smallest value ► Largest value ► Mid value Question No: 19 ( Marks: 1 ) - Please choose one Which graph is made by plotting the mid point and frequencies? ► Frequency polygon ► Ogive ► Histogram ► Frequency curve Question No: 20 ( Marks: 1 ) - Please choose one
