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To avoid the problem of not having access to Tables of F distribution with values given for the lower tail, the numerator of the test statistic should be the one with:
A. the larger sample size
B. the smaller sample size
C. the larger sample variance
D. the smaller sample variance
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
Determine relative frequency of X=4? Generate the cumulative frequencies.
Below is a normal plot of residuals from a regression. Does the plot indicate any problems with the assumption that the residuals are Normally distributed
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
For each of the 50 states and Washington, D.C., a number of statistics related to education are available for 1992
How many subjects would you approximately need to reduce the length of the 95% confidence interval to 2 units?
Are you doubtful of any of these data points? if so why does there show to be a linear relation between degree of stenosis and nuber of reactive nuclei?
Compare your best difference to the result from an ordinary two-sample t-test between these groups. Comment the difference.
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
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