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You decide to research a certain topic. You collect data and organize them into a 5 X 7 table. You find that a chi-square test would be valid for your data, and find that this table has a X^2 of 34.5.
A. What conclusion would you draw about the relationship between these two variables if alpha(a) = .05?
B. What conclusion would you draw about the relationship between these two variables if alpha(a) = .10?
question suppose an influenza epidemic strikes a city. in 10 of families the mother has influenza in 10 of families
A manufacturer of batteries offers a two-year limited warranty. If the battery fails for any reason during the first two years, it is replaced. What percentage of the batteries is expected to fail within the warranty period?
Hemophilia is an inherited sex-linked genetic blood disorder
An engineer in an automotive factory wishes to know what the tire pressure is on all cars leaving the factory. She measures the tire pressure on a sample of 10 randomly selected cars as they are about to leave the plant, in psi.
Josh makes three word-processing errors per page on the first draft of his reports for work. What is the probability that on the next page he will make
What happens to the confidence interval when we go from a 95% confidence level to a 99% confidence level? Is this desirable? When would we want to use a 99% confidence interval?
Find the probability of type I error if exactly 60% of the voters favor the use of these fuels. What is the type II error probability if 75% of the voters favor this action?
Is the annual average wage of unmarried people (18 - 30) the same as that of married people (31 - 43)?
The following data resulted from an experiment to study the effects of leaf removal on the ability of fruit of a certain type to mature:
a quarter back completes 34 of his passes. we want to observe this quarterback during one game to see how many pass
Suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. The restaurant has analyzed the sales of the items at a similar outlet and observed the following results:
A health care professional wishes to estimate the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the true mean is within 6 ounces of the sample mean?
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