Purchase Solution

Concepts of Statistics and Parameters

Not what you're looking for?

Ask Custom Question

1. Determine whether the given value is a statistic or a parameter and explain.
In a study of all 4171 students at a college it is found that 25% own a television.

2. Determine whether the value is from a discrete or continuous data set.
Number of notes in a song 24.

3. Determine whether the given description corresponds to an observational study or an experiment. In a study of 375 men with a particular disease the subjects were asked about their diet.
Does the given description correspond to an observational study or an experiment?

4. Identify which type of sampling is used random systematic, convenience, stratified, or cluster.
A television station asks its viewers to call in their opinion regarding the variety of sports programming.

5. Statistic students participated in an experiment to test their ability to determine when 1 minute (or 60 seconds) has passed. The results one given below in seconds. Find the range, variance and standard deviation for the given sample data. Identify one reason why the standard deviation from this sample might not be a good estimate of the standard deviation for the population of adults.
56 64 67 58
Range=_____sec.

Purchase this Solution
Solution Summary

The solution gived detailed steps on solving various questions on the basics of statistics. All concepts are shown and explained.

Solution Preview

1. It is a parameter because it comes from the entire population (all 4171 students)

2. It is continuous because 24 is measured numerically

3. it is an ...

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.

Measures of Central Tendency

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

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.

View More Free Quizzes
Related BrainMass Solutions

  • Compute the sample mean/standard deviation

    Compare the means and standard deviations from Questions 4i and 4ii. Are these statistics different? What concepts we learned in class can be used to explain the differences, if any. 5. (20 points) i.

  • Importance of Sampling

    Consider in you response how the concepts of a population (and its associated parameters) and the sample (and its associated estimates) fits into the discussion. A population in statistics is deemed to be infinitely huge.

  • DESCRIPTIVE STATISTICS

    This docuement with earlier two documents on basics of statistics will help you to understand the concepts and its application to the forgoing research on salary of baseball players.

  • Biostatistics and Scientific Methods

    Non parametric method like Mann-Whitney U test and log rank for survival data do not assume any particular family of distribution of data and do not estimate parameters of such distribution.

  • Normality and Business Research

    Inferential statistics is the technique where sample parameters such as sample mean, sample standard deviation and sample size are observed and manipulated to make important conclusions about the corresponding population parameters at a reasonable level

  • Purpose of selecting a sample. Sample vs. population.

    How are sample statistics different from population parameters? See attached files. You have identified a population for your research study and selected a sample. What is the purpose of selecting a sample?

  • Normality and Hypothesis Testing

    Inferential statistics is the technique where sample parameters such as sample mean, sample standard deviation and sample size are observed and manipulated to make important conclusions about the corresponding population parameters at a reasonable level

  • Confidence Intervals, Differences Between T And Z Distribution

    Study distributions: http://wise.cgu.edu/downloads/SDM_Ex1_Tutorial.pdf http://www.statsoft.com/textbook/elementary-concepts-in-statistics/ http://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.230312

  • Statistics questions

    ____ (A) statistics are used to estimate the values of population parameters (B) statistics describe the characteristics of populations (C) Parameters are used to describe the behavior of samples (D) statistics calculated from sample data are unrelated

View More Related Solutions