Purchase Solution

Student's t distribution

Not what you're looking for?

Ask Custom Question

T distribution
Use the calculator provided to solve the following problems.
? Consider a t distribution with 21 degrees of freedom. Compute P (-1.49 < t < 1.49). Round your answer to at least three decimal places.
? Consider a t distribution with 3 degrees of freedom. Find the value of such that P (t <=c) = 0.10 . Round your answer to at least three decimal places.

Please see attached file.

Attachments
Purchase this Solution
Solution Summary

The solution provides step by step method for the calculation of probability and raw score using Student's t distribution. Graph of the distribution is also included.

Solution Preview

Please see the attachment.

t distribution
Use the calculator provided to solve the following ...

Purchase this Solution
Free BrainMass Quizzes
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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Student's t and Standard Normal Comparison

    Differences between the Student's t and the standard normal distribution • In standard normal distribution the population standard deviation is known but it is no known in the students t distribution.

  • Joint Probabilities

    As N increases, Student's t-distribution approaches the normal distribution.

  • T-Distribution

    17067 Percentage of the Student's T-Distribution Find the percentages of the Student's t-distribution that lies between the following values: a. df = 12 and t ranges from -1.36 to 2.68 b. df = 15 and t ranges from -1.75 to 2.95. a. df = 12 and t

  • Z & T Distributions

    Answer From Student's t tables, we have, P (t19 ≤ -1.7291) = 0.05 Therefore, c = -1.7291 Below is a graph of a normal distribution with mean and standard deviation .

  • Non-parametric statistics

    Many texts simply refer to the distribution as the "t-distribution" but many still call it "Student's t", a reference to the pen name used by Gossett in the original publication of his work.

  • Paired Difference Test

    t distribution without approximating the test statistic to a Standard normal distribution.

  • Random Variables Factors

    A random variable follows the student's t distribution. The probability that it will be positive is The standard error of the sample mean is equal to 5 when n=25.

  • Null and alternate hypothesis

    Under the null hypothesis this statistic follows student's t distribution with degrees of freedom.

  • The Critical T-Value That Corresponds to 99% Confidence

    Please see the attachment for formatted version with distribution plot. Degrees of freedom, d.f. = n - 1 = 10 - 1 = 9 Critical t-value is obtained from the Student's t table with 9 d.f. at the significance level ? = 1 - 0.99 = 0.01.

View More Related Solutions