Purchase Solution

Variation in Population Sampling

Not what you're looking for?

Ask Custom Question

Can you help me with some True / False questions on statistics? I think I am reading too much into the question for True / False.

*Variation in the population has little if any effect on the amount of sampling that will be experienced?

*Parameters are numbers that can be used to describe characteristics of population?

*Values in a basic frequency tables are directly affected by the size of the sample?

*The most common measure of the center value of a set of data is the sample mean?

*The mean and the median are possible point estimators but the mode is not?

*Because population parameter values are usually known, point estimates are seldowm used to measure them?

*Two fair coins are tossed at the same time. The probability that both show heads is 0.5?

Purchase this Solution
Solution Summary

Solution contains answers and explanation of multiple choice questions.

Solution Preview

Hi,

Please see response to your posting as follows.

*Variation in the population has little if any effect on the amount of sampling that will be experienced?
--> False: Variation in the population affects amount of sampling. More the variation in the population larger sample size is required to achieve desired confidence level. Also, the samples drawn from a polulation with larger variation tend have difference in variance whereas population with smaller variance would tend to have homogenous samples in terms of variance.

*Parameters are numbers that can be used to ...

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

View More Free Quizzes
Related BrainMass Solutions

  • Relationship Between Sampling Mean and Population Mean

    Second, there is no evidence to say that sampling mean always understates the population mean because of sampling variation. There may be other reasons which results in understating the population mean.

  • Sampling Methods and Audit

    There is much variation in the groups and less within the group. This method affects sampling if there are distinct categories in the population; stratified sampling has much control on the arrangement of sample.

  • Hypothesis

    Can the difference between the sample and the known population mean be explained by sampling variation at the confidence level selected The solution file is attached. The expert examines a New York study for average number of bed sampled.

  • Discussing the Main Points of the Central Limit Theorem for a Mean

    (a) Population Shape: The shape of the population is of importance if we have to eliminate all the assignable causes for the observed variation in the data.

  • Use of stratified random sampling; statistical control

    Furthermore, the process is in state of statistical control that mean the process is governed by common cause variation.

  • Non Probability Sampling

    of the members of the group under study then the population is in place.

  • Sampling, Central Tendency, and Sampling

    In this sampling each subgroup of same sized population has an equal probability of being chosen as a sample (1). This is the most common type of sampling.

  • Sampling Technique

    (2) Stratified random sampling. This is a variation that refines random selection to ensure that members of the population with particular attributes are represented in the sample group.

  • Statistical Sampling Application Process

    Determine the Sample Size - Five factors must be considered in determining as correct a sample size as possible: a. The variation within the population b. The acceptable risk of incorrect acceptance c. The tolerable misstatement d.

View More Related Solutions