Mathematics, 18.11.2019 18:31 jayjayanyway04
Astudent 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 99% confidence interval for the population mean?
Answers: 2
Mathematics, 21.06.2019 16:00, amohammad6
Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?
Answers: 1
Mathematics, 21.06.2019 18:00, mooreadrian412
The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed
Answers: 2
Mathematics, 21.06.2019 22:00, reyrey216
Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24
Answers: 3
Astudent wanted to construct a 95% confidence interval for the average age of students in her statis...
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