Purchase Solution

Hypothesis testing and greater means

Not what you're looking for?

Ask Custom Question

Use the traditional approach. Draw a graph showing the test statistic and critical values. Assume the population has a distribution that is approximately normal and the sample is simple random. Use the normal distribution or the Student t distribution, whichever is appropriate.

Many college students require more than 4 years to complete a bachelors degree. At the 0.10 significance level, test the claim of her counselor who states that the mean time is greater than 5 years. Sample data consist of a mean of 5.15 years and a standard deviation of 1.68 years for 80 randomly selected college graduates.

Purchase this Solution
Solution Summary

The hypothesis testing and greater means are determined. The expert draws a graph showing test statistics and critical values.

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.

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

  • Hypothesis Testing in Work, Education, or Politics

    Since both the sample sizes are greater than 30, we can use the large sample test Z-test to test the difference between the two means. In using hypothesis testing and general linear models in my work at a water quality lab.

  • 4 questions on Hypothesis testing and SSR, SST

    180668 4 questions on Hypothesis testing and SSR, SST 1.Explain how you decide what statement goes into the null hypothesis and what statement go into the alternative hypothesis. 2. What is a critical value? 3.

  • Testing Procedures and Five-Step Hypothesis Testing

    146893 Testing Procedures and Five-Step Hypothesis Testing Need Help with the following exercises: I have attached the five-step hypothesis testing procedure 14.

  • Testing if four population means are the same or different

    226254 Testing if four population means are the same or different I need help with testing to see if four population means are the same or different. Assume the populations are normally distributed and have equal variances.

  • five step process for hypothesis testing

    Testing hypothesis means to tell whether or not the hypothesis seems to be valid. In hypothesis testing the main question is whether to accept the null hypothesis or not.

  • Hypothesis test

    We'll use a two-sided test because we're testing the alternative hypothesis that the means are different, not that one is greater than or less than the other.

  • Testing of hypothesis of means

    72179 Testing of hypothesis of means To test if the population mean is greater than 20 . We use z-test to test if the population mean is > 20 . We also use z-test to test if there is significant difference between means.

  • Hypothesis testing :Proportion

    138998 Statistics: Hypothesis Testing Need help setting up, solving and understanding this problem: During the 2004 election year, new polling results were reported daily.

  • Hypothesis Testing

    Explanation This is a two-tailed test because we're testing if two means are not equal to each other.

View More Related Solutions