Mathematics, 14.04.2020 16:30, amberlynnwallac7808
A student researcher compares the ages of cars owned by students and cars owned by faculty at a local state college. A sample of 64 cars owned by students had an average age of 6.27 years. A sample of 40 cars owned by faculty had an average age of 7.64 years. Assume that the population standard deviation for cars owned by students is 2.64 years, while the population standard deviation for cars owned by faculty is 3.42 years. Determine the 80% confidence interval for the difference between the true mean ages for cars owned by students and faculty. Step 2 of 3 : Calculate the margin of error of a confidence interval for the difference between the two population means. Round your answer to six decimal places.
Answers: 2
Mathematics, 21.06.2019 12:50, xojade
Plz, ! the box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day: a box plot is shown. part a: list two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points) part b: calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points) part c: explain what affect, if any, there will be if an outlier is present. (2 points)
Answers: 3
Mathematics, 21.06.2019 19:00, Jessieeeeey
Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1
Answers: 1
A student researcher compares the ages of cars owned by students and cars owned by faculty at a loca...
Mathematics, 25.11.2021 06:20