Confidence interval for the standard deviation
Find the 95% confidence interval for the standard deviation of the heights of maple trees if a sample of 23 trees has a standard deviation of 12 feet.
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A study was conducted to determine the mean amount spent on birthday gifts for a typical family having two children. A sample of 145 was taken, and the mean amount spent was $187.75.
Determine the maximum error of the estimate, E. Determine the confidence level used for the given confidence interval.
In a sample of 45 mice, a biologist found that 46% were able to run a maze in 30 seconds or less. Find the 99% limit for the population proportion of mice who can run that maze in 30 seconds or less.
Let a sub n be the number of ways of coloring the sectors using four colors (Blue, Green, Red, Yellow) so that no two adjacent sectors have same color. Determine and solve a recursion formula for {a sub n}.
Take any location (n,k) in Pascal's triangle, and consider the six locations immediately surrounding (n, k). Label these locations alternately clockwise A and B. Prove that the product of the binomial coefficients at the three A locations equals t
A person upon earth notices rocket approaching from the right at speed of 0.77c and another rocket approaching from the left at 0.56c. Determine the relative speed between the two rockets, as measured by a passenger on one of them?
Galaxy A is moving away from us with speed of 0.70c relative to earth. Galaxy B is moving away from us in opposite direction with a relative speed of 0.50c. Suppose that the earth and the galaxies are moving at constant velocities, so they're iner
After the launch, an observer upon earth sees the spacecraft approaching at a speed of 0.50c and exploration vehicle approaching at speed of 0.65c. Determine the speed of the exploration vehicle relative to the spaceship?
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Select one artifact from a virtual online museum or other venue. Give an overview of the artifact itself, the culture and time period in which it was created
Directions for Make-up Historical Reflection. You may create a Historical Reflection in response to content addressed during week 11
The discussion for this week is on the video clip on the Draft Riots in New York during the Civil War. The prompt for this week's discussion is:
Explain whether or not the Renaissance and the Reformation were sharp breaks from the Middle Ages.
"Never was there a greater contrast, never a more sudden transition than this! A hierarchical system ensured by authority; life firmly based on dogmatic princip
What was the relationship between global migration, new technologies, and the spread of cultural influences during and after the Cold War?
Compare the roles of women in three western cultures (see above) before 1500 CE to explain which society gave women the most amount of rights