Descriptive Statistics for student study hours at a campus
Not what you're looking for?
Suppose you have drawn a simple random sample of 10 students from a college campus and recorded how many hours each student studies (X) during the first week of December,
2009. Results:
Student # 1 2 3 4 5 6 7 8 9 10
Hours Studied: 10 15 20 5 0 18 12 18 7 15
For this sample, compute PXi, the sample average (X), P(Xi¡X)2, and the sample standard deviation (s).
Purchase this Solution
Solution Summary
Step by step method for computing standard deviation is given in the answer.
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.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.