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1. What is the range of values for probability?
2. What do we mean by independent trials?
3. What is the difference in the shape of the t and z density curves?
You randomly pull out two socks, one after the other. What is the probability that you are wearing matching socks?
The result for University X was a mean of 5 hours and an estimated population variance of 2 hours; for University Y; and for University Z. What should you conclude? Use the .05 level. What should you conclude? Use the .05 level.
a particular fast food restaurant is located near a university. 50 of the customers are students. students prefer the
Show that the following quantities are random variables by explaining how they may be defined as functions on a probability space:
a) What is the mass of boiling water we need to melt all ice? b) What is the nal temperature if we mix the ice from the freezer with 5kg of boiling water?
State the alternative hypothesis that would be used to determine if Brand A has a higher proportion of defective smoke detectors than Brand B. Calculate the test statistic for determining if a difference exists between the failure rates of the two..
If a sample of size 200 contains 120 values that are less than m0 and 80 values that are greater, what is the p-value of the test of the hypothesis that the median is equal to m0?
A certain medication is known to increase the pulse rate of its users. The variance of the pulse rate is known to be 10 beats per minute.
identify the type 1 error and the type 2 error that correspond to the given hypothesis. the percentage of adults who
Find P(3) when p=0.40 Assume the geometric distribution applies. Use the given probability of success p to find the indicated probability.
It declined from 28 percent to 27 percent. Married couples without children at home live in another 29 percent of suburban households. The remaining 15 percent are single-parent homes. Use the given information on type of household in 2000 to con..
Cost of equity of 12.9%. aftertax cost of debt of 4.2%. Tax rate is 40%. if the company's debt-equity ratio is .89, what is the weighted average cost of capital
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