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You're organizing a party for which you send out 60 invites, saying each invitee is allowed to bring one additional guest if they wish. Suppose it is equally probably at the invitee herself does not show up, shows up alone, or shows up with a guest.
What is the expected number of guests that might turn up at your party, and its standard deviation?
What ishe probability the number of guests is between 70 and 80?
question 1 a 2009 national poll of 1053 u.s. adults found that 548 favored the governments plan for a stimulus
Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits.
At the .01 significance level, is there a difference in the use of the four entrances?
the observed rate of drinking was the same in both cases although the sample size of the latter was twice as big. The critical region {X ¯>c} and p-value for the two cases are respectively?
What formula would I use? Can you break it down into baby steps so I can understand how you got the answer?
Five digit random numbers (e.g.; 601, 022, 448...), determine the first four elements that will be selected for the simple random sample.
Create an example of an application oriented binomial experiment. You are to give the scenario which should include an "n" and "p".
Create the 95% confidence interval for proportion of adults from Country A who say human activity contributes to global warming.
That a sample of 40 females gives an average production which is more than that based on a sample of 36 males by more than 6 items, assuming sampling with replacement, and that, the sample size for the two sexes being the same, the average product..
A company's manufacturing process uses 500 gallons of water at a time. A "scrubbing" machine then removes most of a chemical pollutant before pumping the water into a nearby lake. To meet federal gregulations the treated water must not contain more t..
Heights of men on a baseball team have a bell-shaped distribution with a mean of 177cm and a standard deviation of 5cm. Using the empirical rule, what is the approximate percentage of the men between the following values?
Does the data indicate, at the significance level 0.05, that true mean lifespan of the product is less than that of the claimed average lifespan? Select the Alternative Hypothesis, Value of the Test Statistic.
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