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1. A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below. Pain Relief No Pain Relief New Medication 44 76 Placebo 21 99 Estimate the risk difference in pain relief between treatments=Estimate the relative risk in pain relief between treatments=Estimate the odds ratio in pain relief between treatments
You are tracking the sales of three tires. Using the binomial distribution formula, what is the probability that at least one will need a repair?
It will take 30 minutes regardless of the traffic conditions. Lynn's utility for travel time is: U(15 minutes) = 0.9, U(30 minutes) = 0.7, and U(40 minutes) = 0.2. Which route will minimize Lynn's expected travel time?
Compute the range and interquartile range
Her students this semester can be considered a sample from the population of all students she might teach, so she compares their mean score with 72.
A local grocery store wants to estimate the mean daily number of gallons of milk sold to customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 5.10 gallons.
Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
Find the probability that the mailed item was First Class or it went to a home.Find the probability that the mailed item was an Ad.
Almost all U.S. light-rail systems use electric cars that run on tracks built at street level.According to the Federal Transit Administration, light-rail is one of the safest modes oftravel, with an accident rate of .99 accidents per million passenge..
Make a decision about buying machinery. The stakeholders in the simulation have different opinions as to the proper course of action the organization should take.
Use information from the modular background readings as well as any good quality resource you can find. Please cite all sources and provide a reference list at the end of your paper.
Find the area between z = -0.65 and z = 0.37, find the area to the right of z = 2.35
Could you please explain in words how you figure out deciles, quartiles, kurtosis, skewness in Excel? How do you find the sum count, largest, and smallest in Excel?
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