Applied Statistics Case Study
stats
A company with a large fleet of cars found that the emissions systems of 18 out of the 65 randomly selected cars they tested failed to meet pollution control guidelines. Is this strong evidence that more than 20% of the fleet might be out of compliance? Test the appropriate ...
Wednesday, May 11, 2011 at 2:18am by Erica
Applied Statistics
Assignment Guidelines Perform a two-tailed hypothesis test using the steps outlined in the assignment description. In a Word document, create a report that includest the following: Null and alternate statements. Pasted Microsoft Excel data output. Identification of the ...
Sunday, October 23, 2011 at 6:05pm by Truth
Statistics
Null hypothesis: Ho: p = .80 -->meaning: population proportion is equal to .80 Alternate hypothesis: Ha: p does not equal .80 -->meaning: population proportion does not equal .80 …show more content…
If a random sample of 16 customers is selected, a) what assumption must be made in order to solve parts (b) and (c)? b) what is the ...
Saturday, April 7, 2012 at 12:06pm by Nancy
Statistic
18. Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test (with an estimated population standard ...
Saturday, February 20, 2010 at 1:32pm by Doris I
sociology
Read this article, and think about what sociologists might study on this. It fits with new definitions of marriage and family. Like it or not, we have to understand how to function as a society with this statistic. http://www.cnn.com/2009/LIVING/wayoflife/04/08/out.of.wedlock....
Saturday, August 15, 2009 at 5:32pm by bobpursley
Math -- Statistic types used in public
A company with a large fleet of cars found that the emissions systems of 18 out of the 65 randomly selected cars they tested failed to meet pollution control guidelines. Is this strong evidence that more than 20% of the fleet might be out of compliance? Test the appropriate ...
Wednesday, May 11, 2011 at 2:18am by Erica
Applied Statistics
Assignment Guidelines Perform a two-tailed hypothesis test using the steps outlined in the assignment description. In a Word document, create a report that includest the following: Null and alternate statements. Pasted Microsoft Excel data output. Identification of the ...
Sunday, October 23, 2011 at 6:05pm by Truth
Statistics
Null hypothesis: Ho: p = .80 -->meaning: population proportion is equal to .80 Alternate hypothesis: Ha: p does not equal .80 -->meaning: population proportion does not equal .80 …show more content…
If a random sample of 16 customers is selected, a) what assumption must be made in order to solve parts (b) and (c)? b) what is the ...
Saturday, April 7, 2012 at 12:06pm by Nancy
Statistic
18. Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test (with an estimated population standard ...
Saturday, February 20, 2010 at 1:32pm by Doris I
sociology
Read this article, and think about what sociologists might study on this. It fits with new definitions of marriage and family. Like it or not, we have to understand how to function as a society with this statistic. http://www.cnn.com/2009/LIVING/wayoflife/04/08/out.of.wedlock....
Saturday, August 15, 2009 at 5:32pm by bobpursley
Math -- Statistic types used in public