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The heights of women aged 20 to 29 are approximately Normal with mean 63 inches and standard deviation 2.3 inches. Men the same age have mean height 69 inches with standard deviation 2.7 inches. What is the z-score for a woman who is 6 feet tall?
The table given below shows numbers of patients classified as underweight, normal weight, overweight and obese according to their diabetes status. Determine the probability that they are overweight?
Construct a grouped frequency distribution using six classes.
When considering the symmetric approximation and Monte Carlo risk approaches. Both make the assumption that the total cost distribution is normal.
The lengths of 225 fish caught in Lake Michigan had a mean of 15.0 inches. Assume that the population standard deviation is 2.5 inches.
A doctor believes that the standard deviation of systolic blood pressure is 450. A random sample of 24 patients found a standard deviation of 520. Assume the variable is normally distributed and a = 0.01. What are the critical values?
The weight of the oranges, in pounds (1 pound = 16 ounces) is a random variable with standard deviation
Estimate the percentage who weigh more than 180 pounds? Assume that we want 96% confidence that the error is no more than 1.5 percentage points.
People arrive at a restaurant at a rate of five per minute and wait to receive their order for an average of 5 mins. Customers eat in with a probability of 0.5 and carry out with a probability of 0.5.
Create probability tree showing all marginal, conditional, and joint probabilities. Create a joint probability table.
A polling company obtains an alphabetical list of names of voters in a precinct. They select every 20th person from the list until a sample of 100 is obtained.
How tall would the door need to be if Boeing wanted to ensure 95% of men could fit through the door without bending?
Multiple choice question based on multiple regression - partial computer output based on a sample of 16 observations and find the estimated regression equation
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