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Research Aptitude Practice Session 16 (in Hindi)
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Talvir Singh
JRF Qualified | Motivational Speaker | Comedy Addict | Lyricist | 5 Year Teaching Experience |Youtuber | Unacademy Top Educator

U
Unacademy user
nice explanations mam very helpful thums up
  1. RESEARCH APTITUDE


  2. ABOUT ME M.Com & MBA From PU CHANDIGARH JRF QUALIFIED IN COMMERCE WORKING AS ASSISTANT PROFESSOR 2 TIMES UNIVERSITY COLOR HOLDER BEST DEBATER OF PUNJAB (2017) BEST POET OF PU CHANDIGARH (2016) COMEDY ADDICT FREELANCE MOTIVATIONAL SPEAKER YOUTUBER unacademy


  3. PRACTICE SESSION


  4. 1. In sampling without replacement, an element can be chosen: . (a) Less than once (b) More than oncee . (c) Only once . (d) Difficult to tell


  5. 2. Sampling based upon equal probability is called: . (a) Probability sampling . (b) Systematic sampling (c) Simple random sampling * (d) Stratified random sampling


  6. 3. A population consisting of the items which are all present physically is called: " (a) Finite population . (b) Infinite population . (c) Real population (d) Hypothetical population


  7. 4. Which of the following statements is false? a. the sampling distribution of the mean will have the same standard b. the sampling distribution of the mean will have the same mean as the c. the sampling distribution of the mean will be normal if the original d. sample data are used as a basis from which to make probability deviation as the original population from which the samples were drawn original population from which the samples were drawn population from which the samples were drawn is normally distributed statements about the true (but unknown) value of the population mean or proportion


  8. 5. A sample of size n is selected at random from a large population. As n increases, which of the following statements is true? a. the population standard deviation decreases b. the standard deviation of the sample mean decreases c. the population standard deviation increases d. the standard deviation of the sample mean increases e. the