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A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean ?? = 88 and standard deviation ?? = 26. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.)
Determine the mean, median and mode of those data. Make sure you show your hand computeed work. Is there any indication from this group of data that the new policy holder may lean toward younger ages?
The probability that Emily will score an 85% on a math test is 5/7. What is the probability that she will score above 85% on exactly 3 of the 5 tests this quart
We're going to use the statistical software, Statistical Package for the Social Sciences or SPSS, to work with data in this class. It analyzes data on a spreadsheet. The data must be entered on the spreadsheet correctly for the analyses to be corr..
As an international development researcher, you would like to know African Citizen's perceptions about current levels of democracy. Your working hypothesis
3 Five university students were given an English achievement test before and after receiving instruction in basic grammar. Their scores are shown below: paired
If X stands for the r.v. denoting the number of graduate students among the 25 chosen, what is the probability that X3 10?
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
Assume that each shipment contains a random sample of bearings. a. What is the probability that a given shipment is acceptable?
Lowering the drinking age. A July 2007 Gallup Poll asked a random sample of 464 adults whether they would favor or oppose a federal law that would lower.
The number of messages sent to a computer bulletin board is a Poisson random variable with a mean of 5 messages per hour.
Estimate the percentage of all American males who measure success primarily from their work. Use a 98% confidence interval. Check the conditions first.
which of the following pairs of class limits would be appropriate for grouping the numbers 10 13 8 and 15 ? explain why
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