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Question: Numbers of rooms in top spas. A report of a readers' poll in Condé Nast Traveler magazine ranked 36 top resort spas.2 Let Group A be the top-ranked 18 spas, and let Group B be the next 18 rated spas in the list. A simple random sample of size 5 was taken from each group, and the number of rooms in each selected spa was recorded. Here are the data:
Group A 552 448 68 243 30
Group B 329 780 560 540 240
Rank all the observations together and make a list of the ranks for Group A and Group B.
A study of 200 advertising firms revealed their income after taxes: What is the probability an advertising firm selected at random has under $1 million in income after taxes?
The mean SAT score in mathematics is 515 . The founders of a nationwide SAT preparation course claim that graduates of the course score higher, on average, than the national mean. Suppose that the founders of the course want to carry out a hypothe..
the waiting times between a subway departure schedule and the arrival of a passenger are uniformly distrubted btween 0
two cards are drawn at random from an ordinary deck of 52 cards. determine the probability that both cards are hearts
A sample of 60 children reveals that only 12 missed school during March. What can be said about the difference in absentee rates?
Determine the probability that Dave will spend more than a year in jail.- Edgar will be convicted.- Edgar will spend more than a year in jail.
That way you will have evidence to present to the director if you implement the cut in hours. Test the claim that there is no difference at the .01 significance level. Can you implement your staffing changes?
What is the purpose of conducting an experiment? How does an experimental design accomplish its purpose? In an educational study, what are the advantages and disadvantages of an experimental design?
A certain disease has an incidence rate of 0.3%. If the false negative rate is 6% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease.
Prepare a time series plot, ACF and PACF for these data. Is there evidence to suggest that the data should be differenced? Explain.
The problem related to Statistics and it defines about calculation of average of students test score and representing it on a graph.
Tattoos. A study by the University of Texas Southwestern Medical Center examined 626 people to see if an increased risk of contracting hepatitis C.
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