Multiple choice

Match the following:

 
Group - I
Group - II
1. Rejection of Ho when it is true
(i) Stratified random sampling
2. Mean is equal to degrees of freedom
(ii) Type - I error
3. Population is heterogeneous
(iii) Positively skewed distribution
4. Mean > Mode
(iv) x2 distribution

  1. 1-(ii), 2-(iv), 3-(iii), 4-(i)

  2. 1-(i), 2-(ii), 3-(iii), 4-(iv)

  3. 1-(ii), 2-(iv), 3-(i), 4-(iii)

  4. 1-(iv), 2-(i), 3-(ii), 4-(iii)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The matching pairs statistical concepts correctly: Rejecting a true null hypothesis is the definition of Type I error, the chi-square distribution has mean equal to its degrees of freedom, heterogeneous populations require stratified random sampling to ensure representation, and mean > mode characterizes positively skewed distributions (right tail pulls mean above mode). This question tests fundamental knowledge of hypothesis testing, probability distributions, sampling methods, and distribution properties.

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