Statistics - Standard Deviation
Not what you're looking for?
A study examining the cost of living in urban versus rural areas was carried out in 1985. Two samples were drawn, and individuals recorded their household expenses over a three month period. Weekly averages and standard deviations show the following:
Urban Rural
mean = $83.50 = $71.10
standard = 7.40 = 6.20
deviation
sample = 13 = 16
size
Is there a significant difference in rural/urban expenditures? (alpha = .01)
Purchase this Solution
Solution Summary
The expert examines standard deviation expenses, Step-by-step solution is provided.
Solution Preview
The solution file is attached.
(a) H0: 1 - 2 = 0 and Ha: 1 - 2 ≠ 0
(b) = 0.01
(c) md = m1 - m2 = 83.50 - 71.10 = 12.40
(d) S = ...
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.
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.
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.