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Suppose that a new treatment is successful in curing a common ailment 66% of the time. If the treatment is tried on a random sample of 60 patients, approximate the probability that more than 40 will be cured. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps.
Let X1, ... , Xn be i.i.d. r.v.'s with (?nite) unknown mean m and (?nite) known variance s 2, and suppose thatn is large. i) Use the CLT to construct a con?dence interval for m with approximate con?dence coef?cient 1 - a;
intelligence quotient iq in a certain population is normally distributed with a mean of 100 and standard deviation of
if the same mean is 11 the hypothesized population mean 10 and the population standard deviation is 4 compute the test
an experiment investigated the effect of length and repetition of tv ads on students choosing to eat at del taco. all
a. Construct a stem-and-leaf display. b. Comment on the shape of the distribution.
Analyze the difference between these two frequency distributions along the dimensions of mean, standard deviation, range, kurtosis, and skewness. What do these differences mean?
Explain the relationship between total gross and opening gross total gross and number of theatres total gross and week in top 60.
The restaurant is open 16 hours each day and the daily expenses are 4500. Using a normal approximation, estimate the probability that on a given day, revenue will cover expenses.
Using the array in question 1 above, calculate the arithmetic mean with the single most extreme outlier removed. Round the calculation to two decimal places.
A 10 year study by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes.
Estimate surface runoff flood hydrograph if a 3-hr-storm excess rainfall temporal pattern is assumed as (2+R/10), (6+R/10) and (4+R/10) cm during each hour time step respectively.
Modify (change) your sample size to 18600. Construct a new 95% Confidence Interval.
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