Value of the new score
A sample of n = 7 scores has a mean of 5. After one score is added to the sample, the new mean is found to be 7. What is the value of the new score?
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The mean is found to be 230 pounds, and the standard deviation is 15 pounds. At a _ 0.01, test the coach's claim. Find the P-value and make the decision. Please provide a detailed response.
What is a unique way to choose a random samples from a specific pooled data set, how to assign each data item, how will wach item be selected?
Develop a payoff (cost) table for this situation. What decision would Beverly make if she were optimistic? What decision would Beverly make is she were pessimistic?
Hypothesis test for the population mean: Z test. A furniture store claims that a specially ordered product will take, on average, = days (5 weeks) to arrive. The standard deviation of these waiting times is days. We suspect that the special orders
In Bayesian analysis additional information is used to alter the probability of the occurrence of an event.
People with z-scorces greater than 2.5 on an IQ test are sometimes classified as geniuses. If IQ test scores have a mean of 100 and a standard deviation of 16 points, what IQ score do you need to be considered a genius?
John Beale of Stanford, CA, recorded the speed of cars driving past his house where the speed limit read 20 mph. The mean of 1000 readings was 23.84 mph, with a standard deviation of 3.56 mph. How many Standard Deviations from the mean would a car
There are two multiple choice questions on a quiz and a student answers the two questions at random. Each question has four possible choices with only one correct answer. What is the conditional probability that he picked the correct answer on bot
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