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1. Calculate distance in inches that a bicyclist travelling 35 mph moves in 1/125 of a second?
2. Notice the bicyclist is riding along a white line. Suppose the length of this white line captured in a photograph is 14 ft. Use proportions to calculate the distance the bicyclist will appear to move in a photograph of this scene that is 10 in. wide.
We have been informed that the stock has gone up 20%. What is the probability of a rise or fall in the GDP?
(a) At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule. (b) Is this a close decision?
The security department of a state university is planning its budget for the next year. In estimating the man-hours for security during university sponsored music concerts, the average length of music concerts is needed.
In a research study, what does statistically significant mean? How are decisions made on data based on significance? What do you do with data that is not significantly different?
On average, how long does patient stay in ER? On average, how long does Potential Admit stay in ER? On average, how many patients are in the ER?
A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 5% are defective. The manufacturer claims this is a fluke of the sample.
Linear programming problems. Computethe following linear programming problem. Among which of the following points (X,Y) is feasible.
Let x1, ..., xn be a random sample from an exponential distribution, X ~ EXP(theta) a) If x(bar) = 17.9 with n = 50, then find a one-sided lower 95% confidence limit for theta.
He notices that 21 of the throws come up 7. State the null and alternative hypothesis, and find the P-value of his observations.
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
Using the scatter diagram (no calculations), would you estimate the linear correlation coefficient to be positive, close to zero, or negative?
Given that the price-to-earnings ratios are uniformly distributed, answer the following questions. What percent of price-to-earnings ratios are between 1.90 and 2.48?
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