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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.
At.01 level of significance, is proportion of seeds which germinate dependent on seed type?
Find the probability that the first marble drawn was blue given that the second marble drawn was red and what is the range space RY of this new random variable Y and give the probability distribution of Y in tabular form
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
How could your answer to part (A) change if you knew returns followed a skewed distribution instead of a normal distribution? Explain.
A random sample of 72 statistics students was taken to estimate the proportion of students who are also in the Math Club. The 90% confidence interval was 0.438 to 0.642. Using this information, what sample size would be necessary to estimate the t..
A hypothesis test is to be used to help determine if there is a difference between the proportion of 2 year college students and private university students that work at least 20 hours per week.
CCI is unable to adjust the mean of the filling process. However, it is able to adjust the standard deviation of the filling process.
Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you (a) increase the confidence level, (b) increase the sample size, or (c) increase the original sample st..
The following table is based on information taken from the Medical Practice Characteristics section of the Statistical Abstract of the United States
You have been asked to test whether data support company's claim? Test at α = 0.05. Suppose normality.
If a card is drawn at random from a standard 52-card deck, what is the probability that the card drawn is one of the following?
Suppose a survey item asks someone if something is very important, somewhat important, not very important, or unimportant. This is an example of what level of measurement?
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