Purchase Solution

A study was conducted to determine the effects of sleep deprivation on student's ability to solve problems.

Not what you're looking for?

Ask Custom Question

Please see attached file for full problem description.

A study was conducted to determine the effects of sleep deprivation on student's ability to solve problems. The amount of sleep deprivation varied over 8, 12, 16, 20, and 24 hours without sleep. A total of ten subjects participated in the study, two at each deprivation levels. After a specified sleep deprivation period, each subject was administered a set of simple addition problems, and the number of errors was recorded. The following results were obtained:
Number of Errors (y) Number of Hours Without Sleep
8 8
6 8
6 12
10 12
8 16
14 16
14 20
12 20
16 24
12 24
1. Find the least squares regression model
2. Calculate and interpret the result
3. Does the data present sufficient evidence to conclude that there is a relationship between the number of errors and the number of hours without sleep?
4. Find the observed significance level for the test and interpret its value
5. Find the coefficient of determination and interpret its value
6. Find the coefficient of correlation and interpret its value
7. Find the significance level for the regression model and interpret its value.
8. Determine the 95% confidence interval and interpret its value

Attachments
Purchase this Solution

Solution Summary

A study was conducted to determine the effects of sleep deprivation on student's ability to solve problems. The amount of sleep deprivation varied over 8, 12, 16, 20, and 24 hours without sleep. A total of ten subjects participated in the study, two at each deprivation levels. After a specified sleep deprivation period, each subject was administered a set of simple addition problems, and the number of errors was recorded. The following results were obtained:

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.

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.