Purchase Solution

Statistics - Curves and Distribution

Not what you're looking for?

Ask Custom Question

How many curves does t have and what are they related to about the t-distribution?

Is there a restriction on the sample size when s can be used instead of sigma in the statement below?

The standard deviations s1 and s2 can be used when Ó1 and Ó2 are unknown and you believe that the underlying distribution is normal. Then, you would use s1 and s2 with the t-test for hypothesis testing.

Purchase this Solution
Solution Summary

A Complete, Neat and Step-by-step Solution is provided.

Solution Preview

(1) The t-distribution consists of a family of curves, one for every degree of freedom. ...

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.

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

  • Statistics - Standard Normal Distribution

    The standard normal distribution in statistics is examined. A complete, neat and step-by-step solution is provided in the attached file.

  • Probability Distribution: Binomial & Normal

    301217 Statistics: 6 Probability distribution problems Unit 2 Test 1. The United States National Centre for Education Statistics compiles enrolment data on American public schools and reports the information in Digest of Education Statistics.

  • Normal curves and sampling distribution

    206001 Normal curves and sampling distribution Novels : Romance USA Today reported that 11% of all books sold are of the romance genre.

  • Statistics: histograms and bell shape curves

    576089 Statistics: histograms and bell shape curves Need instruction on how to draw the histogram for the following data to determine what the bell curve distribution looks like. In excel if possible. Please see attached file.

  • Statistics: Determining Normal Distribution

    525710 Statistics: Determining Normal Distribution Operations and production managers often use the normal distribution as a probability model to forecast demand in order to determine inventory levels, manage the supply chain, control production and service

  • STATISTICS

    As the number of the degrees of freedom increases then we have a better estimate of the population variance and thus the student t approaches the standard normal. The two curves appear to the identical but there are differences.

  • Short answer questions in Statistics

    Different values of μ and σ yield different normal density curves and hence different normal distributions.

  • Statistics

    333058 Statistics: 17 problems The t distribution is a continuous distribution (Points : 6) True False 2.

  • Population Sample Data, Binomial & Normal Distributions

    The standard normal distribution is the normal distribution with a mean of zero and a standard deviation of one (the green curves in the plots to the right).

View More Related Solutions