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1. A man is in the process of buying a new car. He has a choice of 3 engine makes, 7 body styles and 10 colors. How many different cars does he have to choose from?
2. True or False? If false, correct it. For a given situation, the longer your confidence interval is, the lower your confidence in it is (why?).
3. What area under the standard normal curve falls outside the Z values 2.5 and 2.5? (why?)
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
Suppose that you are interested in determining the relation between the students average SAT scores [x] and their freshman GPA [y].
Each undergraduate course taught cost the college an average of $2,500 in faculty wages, and each graduate courses cost $ 3,000. How many undergraduate and graduate courses should be taught in the fall so that the total faculty salaries are kept t..
Derive the probability distribution of the completion times - For each of the distribution in (i) above, calculate their relevant statistics. A task is known to have the following time to completion
Here are the DMS odor thresholds for 10 untrained students:
If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates?
Think of your favorite casino game (craps, black-jack, roulette, etc) and analyze the probabilities of a few different outcomes.
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
What is the probability that an employee selected at random will need either corrective shoes or major dental work?
When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the sample size is 200, what is the probability that the sample proportion will be at least 0.20?
A random sample of 36 days yielded the average daily output of 890.2 tons, with standard deviation of 19.8 tons. Use this information to make a 95% confidence interval for mean.
How many degrees of freedom should the researcher use in her t-test critical value assuming that the variances are equal?
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