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Commercial real estate prices and rental rates suffered substantial declines in the past year (Newsweek, July 27, 2009). These declines were particularly severe in Asia; annual lease rates in Tokyo, Hong Kong, and Singapore declined by 40% or more. Even with such large declines, annual lease rates in Asia were still higher than in many cities in Europe and the United States. Annual lease rates for a sample of 30 commercial properties in Hong Kong showed an average of $1114 per square meter with a standard deviation of $230. Annual lease rates for a sample of 40 commercial properties in Paris showed an average lease rate of $989 per square meter with a standard deviation of $195.
1. On the basis of the sample results, can we conclude that the mean annual lease rate is higher in Hong Kong than in Paris? Develop appropriate null and alternative hypotheses.
Infer that the difference in the level of satisfaction with service between the two branches.
Generate a 95 % confidence interval for the difference in proportions of patients who report pain relief.
Hagger Engineering Corporation is considering undertaking several proposed projects for the next fiscal year. The projects, the number of engineers and the number of support personnel necessary for each project.
There are 6 children in a family. The number of children defines a population. The number of simple random samples of size 2 that are possible equals:
What is the mean and standard deviation of the sampling distribution when we take all samples of size25?
The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Describe your re..
A jeweler at Tiffany & Company computes the value of the linear correlation coefficient for pairs of sample data consisting of Tiffany prices for gold wedding rings and the corresponding prices at a discount store.
How is this relationship different from the bi-variate relationships?
Assume that the cost for this type of hospital emergency room visit is normally distributed with a standard deviation of $92. Assume that the following questions about the cost of a hospital emergency room visit for this medical service.
The firm has already decided that any sample mean below 78 or above 82 will signal the workers that the process is not working properly.
Determine 80% confidence interval for average weights of Allen's hummingbirds in study regions. Determine the margin of error?
Which of the following exam scores should lead to the better grade?
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