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1 out of 3 people in the united states will develop shingles during their lifetime. imagine that you are a doctor who is about to examine 10 unrelated adults selected at random and before you examine them we ask you what are the chances that.
a. At least one of them will get shingles? Explain your method.
b. Exactly one of them will get shingles? Explain your method.
c. At most one of them will get shingles? Explain your method.
The Webster National Bank is reviewing its service charges and interest-paying policies on checking accounts. The average daily balance on personal checking accounts is $850, with a standard deviation of $150. In addition, the average daily ba..
Consider Mary''s study of whether the learning of 6th graders on a math lesson is affected by background noise level. Describe the pros and cons of Mary using a repeated measures design for this study. What would you probably choose to do? Support yo..
17). A study was conducted to determine whether big-city and small town dwellers differed in their helpfulness to strangers. In this study, the investigators rang the doorbellsof strangers in living in Newyork city or small towns in the vicini..
A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a storm is in progress with a severe storm class rating. Let us say that we want to set up a statistical test to see if the wave action (i.e., heigh..
AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals, with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the..
Find the expected value
A quality control engineer at a potato chip company tests the bag-filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 15% of bags are overfilled, then they stop production to fix the mach..
Calculate the slack time for each activity and for each path and looking at only the critical path, find the probability that the store will take more than 23 working days to open.
What is the probability that he is able to go on the trip
A recent study reported that the prevalence of hyperlipidemia (defines as total cholesterol over 200) is 30 % in children 2 to 6 years old of age. If 12 children are analyzed. a) What is the probability that at least 3 are hyperlipidemia? b) What is ..
Explain the important points of the Central Limit Theorem.
Our judicial system operates under a similar principle
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