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Water samples from a particular site demonstrate a mean coliform level of 10 organisms per liter with standard deviation 2. Values vary according to a Normal distribution. What percentage of samples will contain more than 15 organisms?
Determine the probability that subscriber didn't rent the car during past 12 months for either business or personal reasons?
How would you communicate this information to the Vice-President of Human Resources in non-statistical language.
You are conducting a study on what socio-demographic factors could be behind the behavioral problems of students. You are looking at how many times a student was sent to detention. You have information on race, gender, household median income, single..
Suppose that 25 people are called in for jury duty, two of whom are Native American. If 12 of the 25 people are randomly selected to the jury. What is the probability that no Native Americans are selected to the jury?
Weight of the .5 cubic yard bag of landscape much is normally distributed with mean of 40 pounds and standard deviation of 1. Determine the probability that the bag will weigh more than 40 pounds?
Conditions to perform inference in regression
Find the probability that 4 of the 5 committee members belong to a union.Find the probability using hypergeometric distribution.
Given that the mean of all 102 atomic numbers is 51.794, and the population standard deviation is 29.804, what is the probability that the mean of the 40 atomic numbers selected by the student will be at least 57.3?
Compare the vital capacityfor the two groups.calculate a 99% confidence interval for the difference.the result of this comparison may be misleading.why?
A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 19.1 years with a standard deviation of 1.5 years. What is the best point esti..
In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
Let Z be a standard normal random variable. Determine the value of c such that P (Z > c) = 0.1251 is there a way to do this step by step so i can understand it?
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