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An election poll reported that a candidate has an approval rating of 54% with a margin of error of 4%. Construct a confidence interval for proportion of adults who approve of the candidate.
The 99% confidence interval estimating the proportion of all students at the university who prefer outdoor exercise is given by which of the following?
Compute the relative dispersion of each group using the coefficient of variation. Comment on the difference in relative dispersion.
How is this relationship different from the bi-variate relationships?
would this prove that they are exceeding their goal, using α = 0.025?
The post anesthesia care area (recovery room) at St. Luke's Hospital in Maumee, Ohio was recently enlarged. The hope was that with the enlargement the mean number of patients per day would be more than 25.
Under proposed plan, how long, on average, will patient stay in ER? On average, how long will Potential Admit stay in ER?
Estimate the population mean
Use empirical Rule to evaluate proportion of costs within 2 standards deviations of mean. Write down these limits.
A random variable is normally distributed, with (population mean)= 300 pounds and (standard deviation) = 50 pounds. How small can a simple random sample be if the standard error of the mean can be no more than 20 pounds?
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes.
Describe what do you mean by conditional probability. Give clinical example to support the explanation.
If a member of this senior class is selected at random, find the probability that the student a) smokes but does not drink alcoholic beverages; b) eats between meals and drinks alcoholic beverages but does not smoke; c) neither smokes nor eats bet..
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