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A normal distribution has a mean of µ = 70 with σ = 12. If one score is randomly selected from this distribution, what is the probability that the score will be less than X = 55?
Statistics and Probability, Statistics
An automobile accidents occur over a 72 hour holiday period are like events in a poisson process with = 10 per hour. Let Y be the time for the first accident. a) What is the mean of Y and variance of Y? b) Find P(Y > 15 ...
Suppose that the height (x), in inches of a 20 year old man is a normal random variable with a mean of 70 inches and standard deviation of 5.102 inches. What is the 97.5th percentile of all 20 year old men's heights?
What P-value was found when determining whether there is a difference in the IQ of girls and boys in problem 6? Should you reject the null hypothesis? 1. P-Value = 0.465. Yes, you should reject the null hypothesis which ...
What can a continuum of elements in terms of strategic planning mean to performance to small-medium enterprises?
In general, a binomial distribution can be approximated well using a normal distribution only if
According to the center for Disease Control, the mean total cholesterol for men between the ages of 20-29 is 180 milligrams per deciliter with a standard deviation of 36.2. A healthy total cholesterol level is less than ...
You randomly sample 50 theaters in the United States. You ask those theaters how much they charge for a large popcorn, and you get a sample mean of $6. Then, you make confidence interval using this data with the lower li ...
How does the cost of capital affect capital investments that the firm makes? Cite examples.
A normal distribution has a mean equal to 45. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 52.84? (Round your answer to two decimal plac ...
A coffee manufacturer is interested in the mean daily consumption of regular-coffee drinkers and decaffeinated coffee drinkers. The random sample of 50 regular-coffee drinker show a mean of 3.84 cups per day. A sample of ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As