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An airline estimates that 92% of people booked on their flights actually show up. If the airline books 79 people on a flight for which the maximum number is 77, what is the probability that the number of people who show up will exceed the capacity of the plane?
Find the difference between the actual Y value and predicted Y value for each individual, square the differences, and add the squared values to obtain SS residual.
What is the point estimate of the difference between the population mean expenditure for males and the population means expenditure for females?
WLD Incorporated, a national data-collection agency, estimates that 55% of all customers at home warehouse stores (in the United States) own their own home.
You are investigating the flight characteristics of different kinds of birds. You collect a sample of 33 European swallows (Hirundo rustica) and measure their air-speed velocity in a borrowed wind tunnel.
Carry out a t-test to see if the mean healing rate is significantly lower in the experimental limbs, including all 12 newts. What are the test statistics and their P-values?
Test to determine if there is a significant negative relationship between the independent and dependent variable at a = .05 and .01
Is it possible to normalize the data when the population shape has a known skew? How would you demonstrate the central limit theorem to your classmates?
Assume the condition of Normality is met for the problem below. I also want to know the following elements: (Please do not use the Student t test, nor a Chi-square test) Two-tailed test ok?
Of the physics graduates at a university, 30% had a starting salary of $30,000 or more. If five of the graduates are selected at random, find the probability that all had a starting salary of $30,000 or more.
Assembly line from which to observe the work habits of the workers on the line. what is the probability that the point she selects within 25 feet of the end of the line?
A pair of dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.)
You are picking up apples from a tree in a park. You are interested in estimating the mean weight of all apples in the park. Unfortunately you have only been able to find seven apples so far. Can you use the Central Limit Theorem to aid in your es..
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