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X is a normally distributed random variable with a mean of 5.0. Find the standard deviation of the distribution if 59.10% of the data lies to the right of 4.54.
Levels above 200 warrant attention. If 95 teenage boys are examined. How many would you expect to have cholesterol levels greater than 225.
Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis, can we make a geneeral staement about the population base..
How many different ways to be appointed head of a division How many different ways could the three new heads be appointed?
a random sample of 20 items is selected from a population. to determine the appropriate critical t-value what number
How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without g..
The nature of the hypothesis being tested, and the appropriateness of the statistical procedures employed in that test. You may illustrate your points using the tests you conducted.
In how many ways can at least one of the 3 selected vials have a hairline crack if the order of selection does not matter?
the number of unhealthy days based on the aqi air quality index for a random sample of metropolitan areas is shown.
What is the probability of randomly selecting a student with a treadmill time greater than 25 minutes? In symbols, p(X>25)= ? What is the probability of randomly selecting a student with a time greater than 30 minutes? In symbols, p(x>30) ?
A gun is fired straight upward. The bullet leaves the gun at 1000 ft. per sec. The equation for the bullet's velocity is v = -32 t + 1000. What is the velocity at 3 sec.?
A research repot from an independent-measures study states that there are significant differences between treatments, F(2, 54) =3.58, p
you have been hired by medicaid state run program in support of medical care for indigent to advise the director on how
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