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Two high schools are completing in a track meet. The net event is the one hundred meter dash. The coach of the Cheetahs has asked you to construct an interval estimate of how much faster the opposing team's sprint unit is than the Cheetah's sprinters. The Cheetah's coach tells you that five of his sprinters average 11.5 seconds in the 100 meter dash and that their times have a standard deviation of seconds. He says that his runners' times are normally distributed. The Cheetah's coach also scouted the other team the Rockets. He was able to observe six of their runners. The rockets sprinters had an average time of 11.35 seconds with a standard deviation of 0.2 seconds . The cheetahs' coach believes that the Rockets' times are normally distributed as well. Construct a 95% confidence interval the Coach to compare the two teams' sprint units.
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
What is the probability that none can transact business in a foreign language?
Give three logically possible directions of casualty, indicating for each direction whether it is a reasonable explanation for the correlation in light of the variables involved (and why).
Using the p-value approach, test the hypotheses at the 1% level of significance.
First step of analytical hierarchy process doesn't include?
Determine the probability that tire wears out before 70,000 miles?
When is it important to have matched pairs rather than two independent sets of data?
As of 2012, the proportion of students who use a MacBook as their primary computer is 0.36. You believe that at your university the proportion is actually greater than 0.36. If you conduct a hypothesis test, what will the null and alternative hypo..
The display represents Excel output for an ANOVA analysis with σ = 0.05.
Calculate (a) MAD, (b) MSE, and (c) MAPE for the following forecast versus actual sales figures.
Determine a 95 % confidence interval for the iron concentration.
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