While testing the independence of attributes using Chi-square distribution, suppose attribute $A$ is specified into three classes and attribute $B$ is classified into four classes, then the degree of freedom of Chi-square test is:
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Uniform distribution is a particular case of Beta distribution with parameters
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A discrete random variable $X$ satisfies the memory less property, then the random variable $X$ follows
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If a random sample of size 20 from a normal population with variance 225 has mean $\bar{x}=64.3$, then the 95% confiden…
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If the random variable $X$ has the density function
$f(x)=e^{x-2}$ for $x
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Response error is a type of:
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f a random variable $X$ takes the values $1, 2, 3, 4$ such that
$2P(X=1)=3P(X=2)=P(X=3)=5P(X=4)$,
then $P(X=2)$ is:
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Let $p$ be the probability that a coin will fall head in a single toss in order to test
$H_0 : p = 1/2$ against $H_1 : …
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Suppose that there are $K$ treatments and $n$ blocks in a randomized block design. In analysis of variance for this des…
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In $4 \times 4$ Latin square design, the error degrees of freedom is:
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he following LPP:Maximize $Z = 6x_1 - 2x_2$Subject to:$2x_1 - x_2 \le 2$$x_1 \le 3$$x_1, x_2 \ge 0$has optimal value as
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The following LPP:Minimize $Z = x - y$Subject to:$2x + 3y \le 6$$0 \le x \le 4$$0 \le y \le 3$then the number of extrem…
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In an analysis of variance, one estimate of variance $(\sigma^2)$ is based upon the difference between the treatment me…
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Thirty men and thirty women with knee pain were subjects in an experiment to determine the effectiveness of a new pain …
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A tie for leaving variables in simplex procedure implies
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If $\alpha, \beta, \gamma$ be the angles which a line subtends with the positive direction of coordinate axes, then
$\s…
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