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Acording to the National Association of Realtors , 44% of U.S. homes sold in March 2010 wre purchased by first time home buyers. A random sample of 170 people who just purchased homes is selected.
a) Calculate the standard error of the proportion and
b) What is the probability that between 66 & 72 of them are first-time buyers?
Is the chi-square distribution is a skewed distribution whose mean value is n for degrees of freedom larger than two?
Multiple comparison procedures are going to be done using the Bonferroni method with = 0.05. The value of t** is 2.4667. Which of the following is the appropriate conclusion from carrying out these multiple comparisons?
Should we thus conclude that verbal praise tends to lower performance levels, whereas verbal criticism tends to raise them? Or is some other explanation possible?
the probability to catch disease a is 10. the probability to get disease b is 17. the probability to get at least one
Based on these results, a confidence interval for the population mean is found to be u = 5.7 PLUS OR MINUS 4.4. Find the degree of confidence.
suppose 13 of american adults believe that the highest priority of america is to protect freedom of speech. we will
A restaurant claims that its speed of service time is less than 18 minutes. A random selection of 36 service times was collected, and their mean was calculated to be 17.1 minutes.
type your question here although most of us buy the mil by the quart or gallon farmers measurdaily production in
Test the hypothesis that the dogs did significantly better than what would be expected with random guessing.
1 a set of 50 data values has a mean of 15 and a variance of 25.nbsp find the standard score of a data value
Share your determination of probability in each of the situations. Explain how these two ways of assessing probability are different and how they can help make decisions.
If possible, determine a 95% confidence interval for average number of television sets in all 50,000 households. If this is not possible, describe why not.
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