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A new drug is being tested for its effectiveness to treat a certain type of infection. It was effective in 119 cases out of 170.
(a) Construct a 95% confidence interval for the rate of effectiveness of the new drug for treating this type of infection.
(b) Without constructing the 98% confidence interval for the rate of effectiveness, would you expect the interval to be longer or shorter compared to the 95% confidence interval? Why?
(c) Construct a 98% confidence interval for the rate of effectiveness of the new drug for treating this type of infection.
Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results.
A biased coin with probability of head being .6 is tossed 12 times. What is the probability that number of head would more than 4 but less than or equal to 10.
Describe what do you mean by conditional probability. Give clinical example to support the explanation.
Test hypothesis that both propellants have same mean burning rate. Utilize α=0.05. Compute the P value.
A researcher hypothesizes that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, µ =58.A random sample of 14 individuals who listen..
The random variable x is known to be uniformly distributed between 1.0 and 1.5.
On average a certain intersection results in 3 traffic accidents per month. What is the probability that for any given month at this intersection
Use expected collision claim amount to find out the collision insurance premium that would permit the company to break even on collision portion of policy.
A stationery store wants to estimate the mean retail value of greeting cards that it has in its inventory. A random sample of 100 greeting cards indicates a mean value of $2.55 and a standard deviation of $0.44.
Given that Z is a standard normal random variable. What is the value of Z if the area to the left of Z is 0.9382?
Create a 99 percent confidence interval for difference in means between Line B and Line C.
Chi-square test for independent of attributes - A random sample of students is interviewed to determine if there is an association between class and attitude toward corporations?
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