Limit for the population proportion
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.
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You would like to take photos while plane is at least 700 feet in air. During what time interval must you take photos? Determine maximum height plane reaches?
A 95% confidence interval estimate for population mean was computed to be (34.6, 49.4). Find out the mean of the sample, which was employed to find out the interval estimate (show all work).
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.
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}.
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.
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?
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