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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.
the life of a semiconductor laser at a constant power is normally distributed with a mean of 7000 hours and a standard
a purse contains 101 in anthony dollars and 1 in pennies. smith is allowed to draw and keep coins one at a time until
identify the type of sampling used random systematic convenience stratified or cluster. to estimate the percentage of
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.
Show that there is no rational number b/a whose square is 2, as follows: if b^2 = 2a^2, then b is even, so b = 2c, so, substituting and cancelling 2, 2c^2 = a^2.
A manufacturer claims that the life span of its tires is 51,000 miles. Assuming the manufacturer's claim is correct, what is the probability the mean of the sample is 50767 miles or less?
1.at what age do babies learn to crawl? does it take longer to learn in the winter when babies are often bundled in
describe the distribution of sample means shape expected value and standard error for samples of n36 selected from a
1. a normally distributed population has a mean micro32 and a standard deviation ?7. for a set of samples of size
According to a recently conducted survey, 90% of all drivers in Trinidad and Tobago claim to consistently driver over the legal speed limit.
The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: 5 4 5 4 4 3 6 4 3 3 5 6 3 3 2 7 4 5 2 2 2 3 52
1. How does the interpretation of the regression coefficients differ in multiple regression and simple linear regression? Provide examples to support your response.
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