Purchase Solution

Determine whether the samples are independent or dependent

Not what you're looking for?

Ask Custom Question

Determine whether the samples are independent or dependent

1. The effectiveness of a new headache medicine is tested by measuring the amount of time before the headache is cured for patients who use the medicine and another group of patient who use a placebo drug.
2. The effectiveness of a new headache medicine is tested by measuring the intensity of a headache in patients before and after drug treatment. The data consist of before and after intensities for each patient.
3. The effect of caffeine as an ingredient is tested with a sample of regular soda and another sample with decaffeinated soda.
4. The accuracy of verbal responses is tested in an experiment in which individuals report their heights and then are measured. The data consist of the reported height and measure height for each individual.

Find the number of successes x suggested by the given statement

1. Among 660 adults selected randomly from among the residents of one town, 30.2% said that they favor stronger gun-control laws.
2. Among 1400 randomly selected car drivers in one city, 8.29% said that they had been involved in an accident during the past year.

Purchase this Solution
Solution Summary

Answers of question related to dependent / independent sample

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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Probability - Independent - Related-Samples t-test

    For this situation or problem: Clearly identify the independent and dependent variables you would study. Determine whether an independent-samples or related-samples t test is most appropriate and why.

  • Real-world situation - Independent or related samples t test

    For this situation or problem: Clearly identify the independent and dependent variables you would study. Determine whether an independent-samples or related-samples t test is most appropriate and why.

  • Independent samples and ANOVA

    Explains the difference between independent and dependent samples, when dependent samples should be used, and whether there are advantages of one type over the other. Gives an example of a dependent (related) sample.

  • Types of samples: Independent, dependent, and matched pairs

    Determine whether the sampling method is independent or dependent for the following example.

  • Statistical Procedure Explanations

    A two tailed t-test is used to determine if there is a difference between samples, whether that difference be higher or lower (left or right tail).

  • Efficacy of Workout Programs

    For this situation or problem: o Clearly identify the independent and dependent variables you would study. o Determine whether an independent-samples or related-samples t test is most appropriate and why.

  • Statistics

    Dependent samples form a single set of individual or entity for which multiple measurements/responses are collected, to test the difference between two response sets. Thus variation in each group of response is also dependent on the individual.

  • Data Collection/Analysis

    What would be considered the independent and dependent variables are examined.

  • The Use of an ANOVA Test

    Main effects reveal whether the dependent variable differs by different levels of the independent variable; interaction effects reveal whether the dependent variable differs by the combined effect of two or more independent variables.

View More Related Solutions