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One of the initial clinical trials of the anti-math anxiety drug SHOVITALLTM tested for the presence of headaches as a side effect. In the trial, 450 subjects were treated with 80mg of the drug, and 2.2% of the subjects developed headaches. In the binomial distribution of these 450 subjects, what are the mean and standard deviation? Use p = 0.022
At this point, he would then ask you if you wanted to switch to the other door before revealing what you had won. Is it to your advantage to switch? (Hint: The answer might depend on p.)
Assume that workers at each platform will beable to load 4 trucks per hour each and that truckswill continue to arrive at the rate of 3 per hour. Find the waiting line's new operating conditions. Is thisnew approach indeed speedier than the other two..
The 97.5% CI for mean changes in Group B minus mean change in Group A is (-4.7 to -0.9). Suppose we want to compute a two-sided p-value to compare the two groups.
Determine marginal probability distributions of X and Y . Compute conditional probability P ( Y = 2 | X = 1)
A sample of 65 business people was randomly selected and given a leadership test. Construct a 95 percent confidence interval for the mean score on this test, using the estimated standard error of the mean.
Choose a group of 4 adults at random. What is the probability that none of them enjoy drinking beer?
What is the sampling distribution of phat, the sample proportion of adults who smoke and in a random sample of 300 adults, what is the probability that at least 50 are smoker.
Many newspapers carry a certain puzzle in which the individual must unscramble letters to form words. How many ways can the letters of YARNLE be arranged?
in a survey 427 different women are randomly selected without replacement and each woman is asked what she purchased
There is a worker error is 0.3, and the probability that an accident will occur when there is no worker error is 0.2. Find the probability of a worker error if there was an accident.
Household expenditure for long distance telephone service in City A and average monthly expenditure in City B extends from X to Y, determine the value of X?
Can the binomial distribution be used to model the number of rare events that occur over a given time period?
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