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You want to compare the effects of two different cold medicines on reaction time. Suppose you measure the decrease in reaction times for one group of participants who take one capsule of drug A, and you do the same for a different group of participants who take drug B. The results areA: 1.96,2.24,1.71,2.41,1.62,1.93B: 2.11,2.43,2.07,2.71,2.50,2.84,2.88.
Compare these two groups with the Wilcoxon-Mann-Whitney test using α = .05. What is your estimate of the probability that a randomly sampled subject receiving drug A will have less of a reduction in reaction time than a randomly sampled subject receiving drug B.
The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of eight syringes taken from the batch. Assume the batch contains 1% defective syringes.
a survey of adults found that 55 have used a multivitamin in the past 12 months. you randomly select 50 adults and ask
Consider a random sample of six families who are asked if their children have an influence on their vacation destination.
For a simple random sample of ten patients who have recently had knee surgery, the scores are as follows: 101, 92, 94, 88, 52, 93, 76, 84, 72, and 98. Construct and interpret the 90% and 95% confidence intervals for the population mean.
Write a computer algorithm that simulates a hypergeometric random variable with parameters - Show that you can choose your die so that you have probability 2/3 of winning no matter which die your friend picks.
Number of miles flown in a One- year period by the sample of "frequent flyers" was recorded. Is this a grouped or an ungrouped frequency distribution?
A statisitcs professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.0 minutes. Find the probability that a given class period runs less than 50.5 minutes.
The automatic control of an airplane is one example that requires multiple-variable feedback methods. In this system, the attitude of an aircraft is controlled by three sets of surfaces:
Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is.
Explain the difference between independent samples and dependent samples. Classify the following as independent or dependent samples:
The manager of a sport fishing products company wants to test the null hypothesis that a certain lead fishing weights have a mean weight of 4.0 ounces. Under what conditions would the manager commit a Type 1 error?
a statewide real estate agency old colony specializes in residential home sales in nothern pa. records indicate the
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