In an ANOVA problem for one­way classified data, with three classes and three observations per class, if the F­ value is 1.5 and the total sum of squares is 18, then the mean square between classes is :

If six hand-writings were ranked by two judges in a competition and the rankings are as follows:

Then the value of Spearman's rank correlation coefficient is

 In an analysis of variance problem involving 3 treatments and 10 observations per treatment, SSE= 399.6 The MSE for the analysis would be :

 The average of 25 numbers is 36. If the average of first 13 numbers is 32 and that of the last 13 numbers is 39, then the 13th number is

 An observation is drawn from an experimental distribution with mean θ, if the observation is found to be 2, and we test H₀ : θ>1 against H₁ : θ>1 with level e^­-3 then

 For a trivariate distribution, if the correlation coefficients are r₁₂ = r₁₃ = r₂₃ = r, -­1 < r < 1, then r_12.3 is:

Let x₁,x₂,....x_n be a random sample of size n from N (µ , σ²) population where µ and σ are both unknown. For testing H₀:µ = µ₀ against H₂:µ = µ₁(±µ₀) if one uses the test statistic

then H₀ is rejected at level ∝

 A coin is tossed repeatedly until a head appears. If 'p' be the probability of getting a head in any toss and x be the number of tosses required to get the first head then which of the following statement is true:

 If the regression line of Y on X is Y =30 ­ 0.9X and the standard deviations are S_^x  = 2 and S_y  = 9,  then the value of the correlation coefficient r_xy is :

 Which of the following is a method of collection of primary data?

 There are 35 students in a hostel. If the number of students increases by 7, the expenses of the hostel increases by Rs. 42 per day while the average expenditure per head diminishes by Re. 1. The original expenditure of the hostel is:

If 4,5,6,6,6,6,6,6,6,7 be a random sample from a poisson population with parameter λ, then an unbased estimate of λ is :

There are 35 students in a hostel. If the number of students increases by 7, the expenses of the hostel increases by Rs. 42 per day while the average
expenditure per head diminishes by Re. 1. The original expenditure of the hostel is:

 If 4,5,6,6,6,6,6,6,6,7 be a random sample from a Poisson population with parameter λ, then an unbiased estimate of λ is :

The coefficient of correlation between two variables X and Y is 0.48. The covariance is 36. The variance of X is 16. The standard deviation of Y is :

A random sample of size n is drawn from a population of size N by SRSWOR method. Then the standard error of sample mean will be zero if n is

Which type of sampling is one where only the first sample unit is selected at random and the remaining units are automatically selected in a definite
sequence at equal spacing from one another. It is :

In SRSWOR of size n from a population with N units if p is the proportion of sampled units having a given attribute, then unbiased estimate of V(p) is

When the collected data is grouped with reference to time, we have

Relationship between real wage and money wage is given by

Trace out the WRONG option from the following: (CLI= Cost of living index numbers)