Purchase Solution

Hypothesis Test

Not what you're looking for?

Ask Custom Question

A data set can be found at the Data and Story Library site: http://lib.stat.cmu.edu/DASL by searching for Friday the 13th materials.

The data were collected in an effort to study various aspects of human behavior on Friday 13th by monitoring the change in traffic patterns between Friday the 6th and the subsequent Friday the 13th along with shopping traffic and accident reports.

A. Use the data in the accident category from the Friday the 13th data file, along with an appropriate hypothesis test to answer the question: Is Friday the 13th any more unlucky than Friday the 6th?

B. Do more people shop on Friday the 13th? Justify your answer by formulating and executing a hypothesis test.

Purchase this Solution
Solution Preview

A data set can be found at the Data and Story Library site: http://lib.stat.cmu.edu/DASL)by searching for Friday the 13th materials.

The data were collected in an effort to study various aspects of human behavior on Friday 13th by monitoring the change in traffic patterns between Friday the 6th and the subsequent Friday the 13th along with shopping traffic and accident reports.
A. Use the data in the accident category from the Friday the 13th data file, along with an appropriate hypothesis test to answer the question: Is Friday the 13th any more unlucky than Friday the 6th?

accident 1989, October 9 13 SWTRHA hospital
accident 1990, July 6 12 SWTRHA hospital
accident 1991, September 11 14 SWTRHA hospital
accident 1991, December 11 10 SWTRHA hospital
accident 1992, March 3 4 SWTRHA hospital
accident 1992, November 5 12 SWTRHA hospital

To see if there is a difference in the number of accidents, we're going to use a two-sample t-test to compare the mean number of accidents on the 6th of the month and the 13th of the month.

The alternative hypothesis is that there are more accidents on the 13th than on the 6th, and the null hypothesis is that the number of accidents on the 13th is ...

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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Left-Tailed, Two-Tailed, and Right-Tailed Testing

    If the alternative hypothesis is left directional, in other words, if we test the null hypothesis H0 : θ = θ0¬ against the alternative hypothesis H1 : θ < θ0¬¬, then this hypothesis test is called the left-tailed test.

  • Hypothesis Testing

    Claim the null hypothesis is valid C. Fail to reject the null hypothesis D. Claim the alternative hypothesis is true 6. A hypothesis test is used to test a claim.

  • The Purposes of a Hypothesis Test

    If you can, check that the assumptions necessary to do a hypothesis test are satisfied, do the test, and state your conclusion. hypothesis test What is the purpose of a hypothesis test?

  • Hypothesis test: sample of 100

    460193 Hypothesis test: sample of 100 Consider the following hypothesis test: HO: µ ≥ 80 Ha: µ < 80 A sample of 100 is used and the population standard deviation is 12.

  • Regression Hypothesis Test

    354910 Regression Hypothesis Test Methods Regression Hypothesis Test using Education vs. Experience and their relation to Salary Earnings: a. Formulate a hypothesis statement regarding your research issue.

  • Hypothesis Testing

    178637 Hypothesis Testing Please see the attached file. A hypothesis test is used to test a claim. You get 1.75 as your test statistic and 1.59 as your critical value for a right-tailed test.

  • Sample data to test the hypothesis with a two tailed test

    The expert examines sample data to test the hypothesis with a two tailed test.

  • Hypothesis Testing Using Normal Distribution

    Two-tailed test, n = 12, a = 0.05 Z Test hypothesis tests are also explain in charts in Excel attachment . Use the given claim to state a null and an alternative hypothesis. Identify which hypothesis represents the claim. Answers A.

  • Statistics and Hypothesis Testing Problems

    Null hypothesis: µ=640.6 Alternative hypothesis: µ≠640.6 This is a two tailed t test.

  • 5 Step Hypothesis Test

    388291 5 Step Hypothesis Test Test the null hypothesis that a population mean is 50 against the alternate hypothesis that the mean is not 50. The data is of ratio level.

View More Related Solutions