Saturday
December 20, 2014

Posts by penelope


Total # Posts: 34

What would the effect size be?
Based on the data bellow, what would the effect size be? Group one 12 and group two 11. Standard deviation 3.
November 17, 2014

Epidemiology
Consider each of the following scenarios and explain whether the variable in question is a confounder: 1. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain whether gender is a confounder. 2. A case-control ...
October 5, 2014

Pre-Algebra
Thank you sooo much!!
January 9, 2014

Pre-Algebra
The ratio of men to women at a lecture is 2 to 5. A total of 63 people are at the lecture. How many are men? Explain how you found your answer,
January 9, 2014

Physics
A car starts from rest and travels for 5.9 s with a uniform acceleration of +1.2 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.7 m/s2. The breaks are applied for 1.70 s.
September 2, 2013

college statistics
I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve ...
July 18, 2013

college statistics
I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...
July 18, 2013

college stats
Again sorry for all the questions. please help, I am not good at stats and find these questions very difficult. I would appreciate an explanation if possible. 1.What is the sample average? 2.What is the SD of the box? 3.What is the number of draws from the box (the sample size...
July 12, 2013

Stats ()
Coal is carried from a mine in West Virginia to a power plant in Pittsburgh in hopper cars on a long train. The automatic hopper car loader is set to put 75 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed with an average of...
July 12, 2013

college stats
Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you. In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct a 95% confidence interval for the ...
July 12, 2013

College stats
Please help, I would appreciate an explanation on how you got the answer so I can understand it, being that I am so confused. The Denver Post stated that 80% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. A grocery store chain ...
July 12, 2013

college stats
help please!!! 1. The average number of bumped passengers per day on FliRite Airlines is 2.47 with a standard deviation of 1.75. For a random sample of 40 days, what is the chance the average number of bumped passengers in the sample is between 2 and 2.75? a. About 91% b. ...
July 12, 2013

college stats
I am having a lot of trouble with these questions can anyone help me please. 2. On September 2, 2004, a Dan Jones poll based on a random sample of 408 Salt Lake County residents reported that 26% of the respondents thought that Mayor Nancy Workman should resign. Find a 95% ...
July 12, 2013

stats college
Which of the following confidence intervals will be the widest? a. 90 percent b. 95 percent c. 80 percent d. 98 percent
July 12, 2013

ocho rios primary school
Men.
April 17, 2013

Calculus
Use the Evaluation Theorem to find the exact value of the integral ç 7 1 1/5x(dx)
April 17, 2013

Math
A committee, which consists of two mathematicians and three scientists, will be formed from four mathematicians and six scientists. How many possible committees can be formed if : a. any of the mathematicians and scientists are included? b. one particular scientist must be in ...
February 21, 2013

math
A chord of a circle 38.8 cm long is subtended by a 150 degree central angle.Calculate the radius of the circle.
January 29, 2013

historical globalization $ imperialism grade 10
Eurocentric comes from the words Europe and centre. Meaning that people considered Europe being in the centre and the centre of everything. So a eurocentric attitude would mean an attitude which includes thinking that Europe is superior and the central power of everything. ...
April 16, 2012

history grade 10
No they shouldn't. Take the Roman Empire for example, even though it is not colonial imperialism, it was able to maintain and support its huge empire for such a long period of time because it didn't challenge anyone's cultural beliefs and religious practices. This ...
April 15, 2012

Geometry
how do you factor 49y^2 - 4x^2 ?
March 28, 2012

math
If tn = n2 + 1, n ≤ 1, show the first four terms of the pattern. so far i got 2 1 0 -3. but it marked it wrong..and i don't know why
March 18, 2012

Algebra 2
Ln 4 r^2 =3
February 15, 2012

World history
D. The Spaniards had important alliances with other indigenous peoples who were enemies of the Aztecs. The most notable of these alliances was with the Tlaxcalans.
January 2, 2012

chemistry
the longest lived radioactive isotope yet discovered is the beta-emitter tellurium-130.it has been determinded that it would take 2.4 x 10^21 years for 99.9% of this isotope to decay. write the equation for this reaction, and identify the isotope into which tellurium-130 decays.
July 12, 2010

math
How do you find the discount of Regular Price $38 Discount 10%
May 20, 2010

music
what is a diphong?
February 18, 2010

statistics
EVENT PROBABILITY First set of O- rings function correctly and second O-ring functions correctly .7552 First set of O-rings malfunction and second O-ring functions correctly .1138 1st set of O-rings function correctly and 2nd O-ring malfunctions .1138 1st set of O-rings ...
October 10, 2008

history
easy, the answer....... i dont no.
December 4, 2007

history
what is a group of people captured and taken to Babylon by the Chaldeans?
December 4, 2007

math
8O how can u do that kind of math?! im good but not that good!!
December 4, 2007

math
ya wat list?
December 4, 2007

Which of following is not equivalent
Which of the following is not equivalent? Lymph Plasma Interstitial fluid Blood I chose Interstitial Fluid, Am I correct? Blood is the least alike
November 10, 2006

brain/consciousness
where or what part of brain does consciousness reside? I've looked online but mostly just journal articles and so forth. HELP! http://en.wikipedia.org/wiki/Cerebral_cortex thank you so much!
November 7, 2006

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