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The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give your answers correct to two decimal places.)
22
(a) Find the equation of the line of best fit
(b) Find se2.
Families USA, a monthly magazine that discusses issues related to health and health costs, surveyed 20 of its subscribers. It found that the annual health insurance premiums for a family with coverage through an employer averaged $10,979.
in an investigation of the psychometric properties of the criminal sentiments scale css witte et al. 2006 administered
The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.
Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.
Calculate a 95% Confidence Interval for the following samples
an experiment is conducted in which 60 participants each fill out a personality test but not according to the way they
Election-day polls are taken from voting precincts selected because they are believed to be representative of all voters.
A test of 45 capsules had a mean weight of 20.9 milligrams and a standard deviation of 0.3 milligrams. Test the makers claim at the 95% confidence level.
Determine the following: the three different types of shows you want to compare; the mood you will measure and how you will measure it; what you think will happen-how you think each group will score on the mood measure you use.
In the belief that Statistics is too hard, a student claims that the mean score on a final exam is less then 70. 15 scores will be chosen at random to test this claim.
What is the probability that a randomly selected bag has between 1000 and 1200 chips? What is the probability that a randomly selected bag has fewer than 1000 chips?
according to usa today snapshot 3 of americans surveyed lie frequently. you conduct a survey of 500 college students
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