Purchase Solution

Ststistics: Normal Distribution

Not what you're looking for?

Ask Custom Question

*Please see attachment for case study.

Questions:

(a) What are the observational units and variable units of interest in this study? Also specify the population or process of interest.

(b) State and null and an alternative hypothesis about the value of pi (in words and symbols)

(c) We can assess the strength of evidence against the null hypothesis by treating 897 current athletes as a random sample from the process of athlete determination at Brown. If we initially give the university the benefit of the doubt and assume the nully hypothesis is true, does the Central Limit Theorem for a sample proportion apply here? Explain.

Attachments
Purchase this Solution
Solution Summary

Sampling from a population is examined. The expert states and null and alternative hypothesis.

Solution Preview

a) Observational units:the 897 student
Population of interest:undergrad women
unknown param of interest:proportion of undergrad ...

Solution provided by:
Chris Busu, PhD (IP)
Education
  • BSc, University of Bucharest
  • MSc, Ovidius
  • MSc, Stony Brook
  • PhD (IP), Stony Brook
Recent Feedback
  • "Thank you "
  • "Thank You Chris this draft really helped me understand correlation."
  • "Thanks for the prompt return. Going into the last meeting tonight before submission. "
  • "Thank you for your promptness and great work. This will serve as a great guideline to assist with the completion of our project."
  • "Thanks for the product. It is an excellent guideline for the group. "
Purchase this Solution
Free BrainMass Quizzes
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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Importance of null hypothesis, Business value

    319879 Business Research and Ststistics: Importance of null hypothesis, business value What is the importance of the null hypothesis? Why has it been the backbone of mainstream hypothesis testing for decades? What are its limitations?

  • Normal/standard Distribution and Level of significance

    If µ=0 and σ=1, the corresponding normal distribution is called a standard normal distribution. b) What is the purpose of using a standard normal distribution instead of the normal distribution?

  • Normal and standard normal distribution

    How does a standard normal distribution differ from any from any other normal distribution, and how is it similar? Explain. Part B: What is the transformation to standardize a normal random variable?

  • Describe the properties of a normal distribution.

    The standard normal distribution is the normal distribution with a mean of 0 and a variance of 1.

  • Characteristics and Importance of Normal Distribution

    622174 Characteristics and Importance of Normal Distribution What are the characteristics of a normal distribution, and why is normal distribution an important concept for researchers?

  • Importance of normal distribution to Statistics

    Hint 3: Is the normal distribution (or its special case, the standard normal distribution) effective in characterizing situations and/or in helping managers make decisions? "Why is the Normal Distribution so important to statistics?"

  • Define the Normal Distribution and Describe its Properties

    402897 Define the Normal Distribution and Describe its Properties What is a normal distribution? Describe the properties of a normal distribution. Please provide references.

  • Describe the Properties of a Normal Distribution

    168332 Describe the Properties of a Normal Distribution Describe the properties of a normal distribution. Explain why there are an infinite number of normal distributions.

  • Random numbers

    A standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1.

  • Normal distribution

    The distribution of many test statistics is normal or follows some form that can be derived from the normal distribution.

View More Related Solutions