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1. Graph this equation put at last five points for the equation.
x +4y= 5
2. Graph each inequality. use the test point method.
4x + 3y>24
Give a brief description of a real-world example in which one measure of central tendency provides useful information while another measure of central tendency provides meaningless (or even misleading) information.
Let Y be the number of envelopes for which the machine fails to remove a check. Using the Central Limit Theorem to approximate P{Y≤10}.
Given that SAT test scores are normally distributed with a mean of 1000 and a standard deviation of 200, what is the lowest possible score a student needs to qualify for acceptance into the university?
The waiting time to place an order at a branch of a fast-food chain during the lunch hour has had population mean of 3.55 minutes, with a population standard deviation of 1.1 minute.
A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical. Which of the following statements is ..
A new process for producing synthetic diamonds can be operated at a profitable level only if the average weight of the diamonds produced by the process is greater than 0.5 karat.
Test the hypothesis that more than 60 percent of the U.S. senators (of a total 100 senators) favor the president's economic plan, if a sample of 40 showed that 22 favor the plan (use alpha = .05).
Assuming these data are from two independent groups, calculate dfX, dfY, and dftotal for the data above. Determine the critical values for t based on the df you calculated for the question above, assuming a two-tailed test with a p level of 0.05.
He would like 95% confidence intervals for the average price people would be willing to pay: one for the higher-income group, one for the lower-income group.
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.
One side of a rectangular stage is 2 meters longer than the other. If the diagonal is 10 meters, than what are the lengths of the sides?
Gigi has rolled a natural on four straight tosses of the dice. This excites the gamblers standing around the table.
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