What of the following can be used to MINIMIZE error in statistics? O Increase the sample size O Decrease the sample size OIncrease randomness O Decrease randomness O Use a convenience sample OUse simple random sampling O Round vallues with each calculation OAvoid rounding values as much as possible.

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You answered this question: What is the Sample Variance for the following numbers:52, 62, 52, 45, 41

To get an unbiased sample variance, we divide by instead of which would give us a estimate of the variance.

Answers only. Thank you   An instructor recorded the following number of correct items (in a quiz with 10 questions) for the 12 students present: 7, 4, 2, 2, 2, 9, 10, 6, 7, 3, 8, 5. What is the level of measurement of the data obtained?* a. Ordinal b. Ratio c. Interval d. Nominal   2. The purpose of stratified random sampling is to make certain that* a. the sample is more representative of the target population than the accessible population. b. the participants chosen for the study are the ones most likely to react to the treatment. c. every member of the population has an equal chance of being selected for the sample. d. the sample proportionately represents individuals from different categories of the population   3. In a simple random sample, a. each member in the population has a chance of being included in the sample. b. not all members in the population are given the chance of being selected. c. each…

What is the symbol for the sample variance?

Answer #1A and #1B 1A.  Which of the following is NOT true about cluster random sampling? Choose below:  Sampling frame is the list of elements in the selected clusters. It is included in our sample all elements in the selected clusters. The clusters should ideally reflect the profile of the population. The population is divided into clusters and then take a sample of clusters. 1B.  Systematic sampling is convenient to use in Statistics EXCEPT: Choose below: The sampling procedure does not require a randomization mechanism. We do not need a frame in selecting the elements. It is easy to get the sample elements since we get every kth element. Transportation cost is low.

Explain the procedure to obtain a representative sample  Write a short note on each of the following:  Simple Random sampling Systematic sampling Stratified sampling Cluster sampling Multi-Stage sampling Convenience sampling Judgment sampling Snowball/Referral sampling Quota sampling