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Results from a previous study showed 79% of all high school seniors from a certain city plan to attend college after graduation. In a random sample of 200 high school seniors from this city, 162 planned to attend college. Does this indicate that the percentage has increased from that in the previous study? Test at 5% level of significance.
However, 2% of the Dallas clocks are defective. If you go shopping and buy a clock from this company, what is the probability that you buy a defective clock?
msa computer corporation manufactures two models of minicomputers the alpha 4 and beta 5. the firm employs 5
a. Rank the observations in each sample separately, and find each difference between the ranks, di. b. Find the sample correlation coefficient between the rank
In a Gallup poll done in 2007, a randomly selected sample of n = 254 U.S. parents was asked how often the television was on when they ate dinner as a family.
What is the present value of a $400 payment in one year when the discount rate is 10 percent?
Produce a graphical display comparing the conditional distributions of males and females among the three categories of politics.
Transportation problem using the stepping stone method
When someone buys a ticket for an airline flight, there is a 90% probability that a person will not show up for the flight. Air America books 15 people on a commuter flight that can only seat 13 passengers.
The article "On Assessing the Accuracy of Offshore Wind Turbine ReliabilityBased Design Loads from the Environmental Contour Method" (Intl. J. of Offshore and Polar Engr., 2005: 132-140) proposes the Weibull distribution with α = 1.817 and ß = .8..
a statiscal abstract includes the average per captia income for each of 15 states. when those 15 valuse are added then
A biased coin with probability of head being .6 is tossed 12 times. What is the probability that number of head would more than 4 but less than or equal to 10.
Obtain the z-score and T-score for EACH student. Show your calculations. Who did better on the test? How many standard deviation units is each score from the mean?
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