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Redo given problem using a two-tailed test. Did your results change? Compare the p-values of the two tests. Explain.
Problem An article in BusinessWeek says: "Today companies use a mere 40% of their space." Suppose you want to disprove this claim, suspecting that it is an upward exaggeration. A random sample of the percentage used space for companies is 38, 18, 91, 37, 55, 80, 71, 92, 68, 78, 40, 36, 50, 45, 22, 19, 62, 70, 82, 25. Conduct the test using α = 0.05.
Compare the grower's expected values for the three alternatives he has, considering the various possible loss scenarios for the burners and the sprinklers. Which alternative would you suggest the grower take? Why?
suppose that x is a variable that has poisson distribution and satisfies pxgt1 0.6what is px6?what is
What is the probability that the first order will come on the fourth sales call of the day? Please show work and round to 4 decimal places.
X2 is college board score (range 200-800). Use the multiple regression equation to predict college gpa for a high school gpa of 3.6 and a college board score of 600.
suppose that 76 of americans prefer coke to pepsi. a sample of 80 was taken. what is the probability that at least
Sketch a curve, point out the distribution (i.e., normal , student T, Chi square), critical region(s). test statistics, critical values(s) and n p-value?
A screening test is used in the same way in two similar populations, but the proportion of false-positive results among those who test positive in population A is lower than that among those who test positive in population B.
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
two points along a straight stick of length 39 cm are randomly selected. the stick is then broken at those two points.
find the area of region enclosed
If the population mean is 36, are the serial killers significantly more introverted at the .05 level? Perform the appropriate one-tailed test.
a real estate agent has appointments with eight prospective clients. from past experience the agent knows that the
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