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Notice that the random variable Y is the number of successes observed in the n trials. Here, success is merely a name for one of the two possible outcomes on a single trial of an experiment. Before giving the denition of the binomial probability distribution, try to derive it by using the sample-point approach. How?
Assume P1 and P2 move simultaneously. Represent this game in normal form.
A company makes camshafts. The camshaft lengths need to be within a certain tolerance or they will not fit. They have produced x bar and s charts
Standard deviation of 23.8 days. What is the 90% confidence interval for the average days worked by employees in all payroll departments?
Using the data file below, construct a histogram and a frequency polygon. Describe the shape of this distribution.
Twenty-eight items are randomly selected from a population of 260 items. The sample mean is 38 and the sample standard deviation 5. Develop a 90 percent confidence interval for the population mean.
The question of interest is whether mean GPA is the same or differs for different weight attitude populations. Minitab output for the study is given above. The mean square error (MSE) in this study is:
Non directional/ Are reoffending and drugs related? Directional/ Are reoffending and drugs inversely related, such that drugs decrease as reoffending increases?
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.
Given this information we could use a Z test for two independent means and conclude that indeed the sales are different when the soup is a featured item.
A sample of 81 observations is taken from a normal population. The sample mean is 40, and the sample standard deviation is 5. Determine the 95 percent confidence interval for the population mean.
What is the probability that among 10 true hypertensives at least 50% are being treated appropriately and are complying with this treatment?
You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck.
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