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Question:
The average cost per night of a hotel room in San Francisco is $550 with a standard deviation is $150 based on a sample of 50 hotel room rates.
a) Construct a 99% confidence interval estimate on the mean of all hotel room rates.
b) What is the 90% confidence interval estimate?
c) What is the 95% confidence interval estimate?
What statistics test should I be using when I am assessing whether subjects were able to complete a task (i.e. Yes/No nominal data) before instructions, after instructions and then again after a demo
What are the strengths and weaknesses of nonparametric tests? Can the outcomes of the nonparametric tests be generalized to populations?
Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has margin of error less than 1%. Roughly how large a sample w..
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Suppose Alden wrote 400 policies for the forthcoming weekend. Compute the probability that exactly two claims will be filed using the equation for Poisson Probability.
the average age of amtrak passenger train cars is 19.4 years. if the distribution of ages is normal and 24 of the cars
a local board of education conducted a survey of residents in the community concerning a property tax levy on the
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Which of the following would be an appropriate alternative hypothesis?
The article "Compatibility of Outer and Fusible Interlining Fabrics in Tailored Garments (Textile Res. J., 1997: 137-142) gave the following observations on bending rigidity (µN . m) for medium-quality fabric specimens, from which the accompanying..
The demand function for both products 1 and 2 has a constant elasticity: Q1 = k1 p1-ε1 and Q2 = k2 p2-ε2 where εi is the absolute value of the elasticity of demand for product i and ki is a parameter that reflects the size of the market. Sup..
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