Number of results: 15,509
Please Help! My book and instructor are no help. Please help me understand why I need to make a scatter diagram, when dealing with bivariate data, and how to find SS(x), SS(y), SS(xy), and r. I have all the formulas, but don't understand. Thanks! I dont know that the diagram ...
Tuesday, August 30, 2005 at 9:45pm by Rebecca
I'm looking for some help with my statistics homework...I'm good with the basics, but I really bombed on my last class anyone??? To help you, we need to know specifically what problems you have. Please repost with specific problems. I hope this helps a little. Thanks for asking.
Thursday, July 13, 2006 at 9:59am by Robert
Let X1;X2;X3;...;X6 be a random sample from a distribution with the following probability desity function: Fx(x) = (1+4x)/3 for 0<x<1 = 0 for x=<0; x>=1. (a) Determine the joint p.d.f of Y1 and Y6 where Y1<Y2<...Y6 are the order statistics. (b) Let R= Y6-Y1 ...
Thursday, August 10, 2006 at 2:18am by ruth
Please help me figure them out. 1. In the 105th Congress, the Senate consist of 55 Republicans and 45 Democrats. If a committee is formed by randomly selecting four different senators, what is the probability that they're all Republicans? 2. It's common for public opion polls ...
Tuesday, December 5, 2006 at 3:45pm by David
Assume that the cure rate for a certain drug is 20% and that 15 patients are tested with this drug. Find the following: a) Mean b) Standard Deviation c) P (exactly 4 cures) d) P (exactly 4 cures) A snack company distributes chips in bags labeled 6 ounces. The local Bureau of ...
Monday, December 11, 2006 at 5:12pm by Mary
i have to find definitions and describe 208 words in my statistics class and for one of them it says: describe the deviation from a pattern of a graph. i don't actually get what it's asking me. i don't think it's pattern becuase i already have the definition for that. when it ...
Friday, January 26, 2007 at 10:16pm by david
Find one quantitative and one qualitative data set from a reliable source and determine the best way to present that data graphically. Show your graph and explain your reasoning for choosing this presentation method. When might the reported median of data be more appropriate ...
Thursday, July 22, 2010 at 1:51pm by sue
A manager has portioned the company’s sales into six districts: North, East, South, Midwest, West and International. What graph or table would you use to make the points below in a presentation for management? 1. A figure that shows the slightly more than half of all sales are...
Thursday, July 22, 2010 at 1:52pm by sue
• Best Practices has the following caveats: • • Use a bar chart to show the frequencies of a categorical variable. • • Use a pie chart to show the proportions of a categorical variable. • • Preserve the ordering of an ordinal variable. • • Respect the area principle. The ...
Thursday, July 22, 2010 at 1:53pm by sue
Industry 1980 1997 Agriculture 290 727 Mining 994 586 Construction 4,473 5,513 Manufacturing 21,165 18,633 Transportation 4,623 6,247 Trade 20,258 28,813 Finance and Insurance 5,295 7,367 Services 17,186 37,380 • • The table above shows the number of employees, in thousands, ...
Thursday, July 22, 2010 at 1:55pm by sue
Mean is more influenced by deviant scores, so skewed distributions would be better represented by the median. Mode (most frequently occurring score) would be better, if the distribution is bimodal. A bimodal distribution can usually be separated into two underlying ...
Thursday, July 22, 2010 at 1:51pm by PsyDAG
Clickfraud has become a major concern as more and more companies advertise on the Internet. When Google places an ad for a company with its search results, the company pays a fee to Google each time someone clicks on the link. That’s fine when it’s a person who’s interested in...
Tuesday, July 27, 2010 at 7:32pm by sue
A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon. You believe the claim is incorrect and find that a random sample of five cars has a mean gas mileage of 19 miles per gallon and a standard deviation of 4 miles per gallon. Assume...
Tuesday, July 27, 2010 at 7:32pm by sue
Please complete the following 5-step hypothesis testing procedure in your Learning Teams: A simple random sample of forty 20-oz bottles of Coke® from a normal distribution is obtained and each bottle is measured for number of ounces of Coke® in the bottle. The sample mean is ...
Saturday, July 31, 2010 at 8:57pm by sue
. Hypothesis Testing o Please complete the following 5-step hypothesis testing procedure in your Learning Teams: A simple random sample of forty 20-oz bottles of Coke® from a normal distribution is obtained and each bottle is measured for number of ounces of Coke® in the ...
Sunday, August 1, 2010 at 4:46pm by sue
How would you like us to help you with this assignment?
Sunday, August 1, 2010 at 4:46pm by Ms. Sue
You work for the public relations department of the Social Security Administration. In an effort to design better advertising campaigns, your department decides to conduct a survey to find out the opinions people in the United States have about the Social Security system. One ...
Saturday, August 7, 2010 at 2:14pm by sue
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?
Saturday, August 7, 2010 at 2:14pm by PsyDAG
Find an example of application of Normal Distribution (or approximately Normal Distribution) in your workplace or business (or any other business that you are familiar with). Prove that the variable has the characteristics of a Normal Distribution. Recall that the variable ...
Sunday, August 1, 2010 at 4:46pm by Joanne
1. The Myers Summer Casual Store tells its customers that a special order will take six weeks (42 days). During the recent months, the owner has received several complaints that the special orders are taking longer than 42 days. A sample of 12 special orders delivered in the ...
Sunday, August 1, 2010 at 4:46pm by uop