Confidence Interval for Mean Difference& F-statistic P-value
Not what you're looking for?
Inferences concerning the mean difference using two dependent samples, two independent samples, and proportions.
A.
Before 93 106 87 92 102 95 88 110
After 92 102 89 92 101 96 88 105
a. What is the point estimate for the mean reduction in the diastolic reading?
b. Find the 98% confidence interval for the mean reduction.
B. On this scale, high scores indicate high anxiety concerning death. The results were reported as follows.
N mean Std Dev
Organ Donors 25 5.36 2.91
Non-organ Donors 69 7.62 3.45
A. Construct the 95% confidence interval for the difference between the means, Unon -- Udonor
C.
Calculate the estimate for the standard error of the difference between two proportions for each of the following cases:
a. n1=40 p'1=0.8, n2= 50, and p'2= 0.8
b. n1= 33 p'1= 0.6, n2= 38, and p'2= 0.65
D.
Find the p-value for each of the following situations:
a. F* = 3.852, df(factor) = 3, df(error) = 12
b. F* = 4.152, df(factor) = 5, df(error) = 18
c. F* = 4.572, df (factor) = 5, df(error) = 22
Purchase this Solution
Solution Summary
The solution provides step by step method for the calculation of confidence interval for paired difference and p-value corresponding to F-statistic. Formula for the calculation and Interpretations of the results are also included.
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.
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.
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.