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A woman who has just moved to a new job in a new town discovers two routes to drive from her home to work. The first Monday, she flips a coin, deciding to take route A if it comes up heads and to take route B if it is tails. The following Monday, she will take the other route. The first Tuesday, she flips the coin again with the same plan. And so on for the first week. At the end of two weeks, she has traveled both routes five times and can compare their average commuting times. Why should she not use the t -tools for two independent samples? What should she use?
five students were randomly selected from a large university. the act scores for these students were 23 12 27 32 and
In a transportation problem with 5 supply points, 3 demand points, and total supply equaling total demand, the number of decision variables will be:
Suppose that each passenger may get out of the elevator at either of the 2nd or the 3rd floor. Note that 8 passengers are different. How many ways may the 8 passengers get out of the elevator?
Using your own experience, estimate the probability the local weather forecast is correct. Explain the rationale behind your estimate.
body mass index for newborns follows a normal distribution with a mean of 14 and standard deviation of .95. a doctor
the time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 10 minutes.a what
How much time should be allowed if we wish to ensure that at least 9 out of 10 students (on average) can complete it? (round to the nearest minute).
Prove d/dt(u(x(t),t))+tanh(x(t))(d/dx(u(x(t),t)))=0 u(x(t),0)=a(x(t)) limit as x tends to infinity of u(x,t)=0 has at most one solution.Explain why there is no boundary condition at x=0 and find a solution for the special case a(x(t))=sinh(x(t))
use inverse transform method to create the following r.v.s using r1 logistic1022 pareto213 weibull234 gamma355
Suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. The restaurant has analyzed the sales of the items at a similar outlet and observed the following results:
What is the null hypothesis? What is the research hypothesis?
Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. What is the probability that Person A was given a vitamin tablet?
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