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The physician also knows that if a patient is untreated (or does not take the prescribed medication), then the mean DBP over 4 weeks will decline by 2 mm Hg with variance 33/n. What is the probability that an untreated subject will decline by at least 5 mm Hg if 1 replicate measure is obtained at both baseline and follow-up?
The calculated value of F in a one-way analysis is 8.23. The numerator degrees of freedom and denominator degrees of freedom are 4 and 8, respectively.
if the standard deviation of the lifetime of a vacuum cleaner is estimated to be 300 hours how large of a sample must
If you assume returns follow a normal distribution, which investment would give a better chance of getting at least a $40 million return? Explain. (B) How could your answer to part (A) change if you knew returns followed a skewed distribution inst..
rocky mountain tire center sells 9000 go-cart tires per year. the ordering cost for each order is 40 and the holding
Critically illustrate out the properties of a normal distribution. Explain why there are an infinite number of normal distributions.
Probability about 0.2 of suggesting that the person is deceptive. What is the probability that the number classified as deceptive is less than the mean?
an assembly line maufactures engines where the probability that a given engine is defective is .10. assuming that the
What about a variable I intend to use to help do some forecasting. Interest rates, for example, will have an effect on the number of houses purchased --- may I call interest rate the independent variable and number of houses purchased the dependent v..
Let x be a nilpotent element of the commutative ring R i.e. x^m for some positive integer m. Prove that x is either zero or a zero divisor
Find the sample mean and sample standard deviation of the amount citizens spend per year. When finding a confidence interval for the true mean spent of ALL citizens, should we use a z-score or a t-score? Why?
1. a researcher conducts a study and concludes that a new behavioral health treatment program significantly reduces
Descriptive statistics for each of the four variables along with a discussion of what the descriptive statistics tell us about the motion picture industry?
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