Normally distributed and the sample variances
If we have independent random samples n1=6 and n2=2 which are normally distributed and the sample variances are s21 = 5 and s22 = 15, can we assume σ21=σ22?
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If the total is 17, then I roll two more dice and add that to the total. If these two bonus dice total 20, then the score of that game is 37. Of ten thousand games, what is the average score? Both answer and spreadsheet needed.
At time t > 0 (in hours since giving the drug), the concentration (in mg/L) is given by the equation: c(t)= (60t)/(t^2+9). What is the highest concentration of the drug?
At the top of its trajectory, the projectile explodes into two fragments of masses 0.97 kg and 2 kg. At 3.87 s after the explosion, the 2-kg fragment lands on the ground directly below the point of explosion. Determine the energy released in the e
A chemist wanted to mixed 6.0 mL of solution A (d=0.82 g/mL) with solution B (d=0.94) so that the final density of the solution was 0.88 g/ml. How many mLs of solution B must he mix with A to obtain the desired density?
A small metal bead, labeled A has a charge of 25 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 25 nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between th
Find the local maximum and minimum values of the function below, and the value of x at which each occurs. Find the average rate of change for the function f(x)= 1/6x+7 between x=a and x=a+h
Can someone please tell me why adding reagent-gradeacetone removes NaOH from a product in which the Michael addition reaction used NaOH as a catalyst
For the first 9 months of 2009 the account earned i^(12)=.105, and since then the account has been earning i^(12)=.12. Find the balance in the account on each of the following days:
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Risky social support Another way in which the Internet can increase children's and adolescents' mental health problems is by fostering communication
When developing a grant proposal, it's important to set clear and measurable goals. One way to do this is by making sure your goals follow the SMARTIE system
Although the Internet can be a helpful outlet for some youth in terms of exploring their sexual identify (e.g., LBGT youth who live in small, conservative commu
Cyberbullying An additional risk of Internet communication is cyberbullying, which is when someone engages in behavior to hurt someone
Respond to at least two of your colleagues (one assigned to each of the other two disorders) on two different days and compare your assigned disorder
Its key advantage is high internal validity; its disadvantage is that randomization is often ethically or practically impossible.
Reflect: Briefly describe a personal belief or opinion you hold (e.g., a stance on a political issue, a preference for a certain type of media).