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The average cost for new tires on a vehicle is $157.00. Assuming a normal distribution, if 70 percent of the costs for tires is less than $171.00, what is the standard deviation? How is this calculated?
Mean of 61 minutes and a standard deviation of 9 minutes. Find the proportion of runners who take more than 70 minutes to finish. Draw a sketch to show this proportion.
For the following population of N=10 scores 14,6,8,3,9,12,1,6. Draw the histogram showing population distribution. Locate value of population mean in your sketch and make estimate of standard deviation.
What is the probability that the police will strike and the firefighters will not? What is the probability that the firefighters will strike and the police will not?
The sample results are given below. At the 0.10 significance level, test the claim that response and major are independent.
Construct a sample space using a tree diagram - Which of the following three sets of probabilities are inappropriate because they violate a basic rule of probability
Graph the information using a histogram and a scatter plot in Excel as well. How does seeing the information in a graphical format provide more information?
Is there sufficient evidence to indicate that the mean annual percentage turnover for U.S. plants exceeds the corresponding mean percentage for Japanese plants?
Get an answer from tutors to this homework question now: Under what circumstances is the experimentwise alpha level a concern?
You select a random sample of 16 cities similar to Statesville in demographic and economic characteristics and collect the following data on FOOTAGE (in 10,000 square feet) and RETURN (rate of return as a %). a. Analyze the above output to determi..
Write a hypothesis that you might test to compare two or more samples in your example. Indicate which hypothesis test you would use and the samples you would select.
Determine the probability that a randomly selected teacher earns more than $525 per week?
Let x be a nilpotent element of the commutative ring R i.e. x^m for some positive integer m. Prove that x is either zero or a zero divisor
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