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What role does the binomial distribution play in the sign test, and when is it permissible to use the normal approximation in carrying out the test?
As we discuss why statistics are useful in decision-making, what statistics do you think are important to consider as to why the survival rate was higher for spouse to spouse transfer? Can you find any research that supports this claim or may help..
The results of a published research study indicated that babies fed on breast milk gained an average of 11 ounces per week; babies fed a powdered instant baby formula gained an average of 2 ounces per week.
The airline must sell 150 seats to break even on this particular flight. On what percent of the flights does the airline make money?
Perform a MANOVA. data set perform a MANOVA. "Group" is your fixed factor, and LDL and HDL are your dependent variables - Exploratory Data Analysis.
The population standard deviation is unknown. If you assume that the population mean is 19, find the P-value corresponding to the hypothesis that the average cutthroat trout length is different from 19 (i.e. two-tail test).
In a compressed data file of 10,000 bytes, each byte is equally likely to be any one of 256 possible characters b0,..., b255 independent of any other byte. If Ni is the number of times bi appears in the file, find the joint PMF of N0,..., N255. Also,..
Potential jurors. On page 28-11 are descriptive statistics and a scatterplot for the reporting percents in 1985 and 1997 from Table 28.2. (a) Use the descriptive statistics to compute the least-squares regression line for predicting the reporting ..
A computer game. A multimedia statistics learning system includes a test of skill in using the computer's mouse. The software displays a circle at a random location on the computer screen.
How large a sample should be selected in order to estimate the population proportion to within a margin of error of 0.02 with 97% confidence. The sample proportion from the preliminary sample was 0.18.
Determine the plan using Handbook H-108 if the time to failure is exponentially distributed. Items that fail during the test are not replaced.
a researcher can test at the
Give a 95% confidence interval and a 90% confidence interval for the average length of a long-distance phone call during weekends.
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