Mathematics, 23.04.2021 15:50 dblakes43

Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random sample of 50 students, she found that 32 students read at least 1 book last month. Assuming all conditions for inference are met, which of the following defines a 90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month? a. 32 + or - 1.645 underroot(32)(18)/50.
b. 32 + or - + 1.96 underroot(32)(18)/50.
c. 0.64 + or - 1.282 underroot(0.64)(0.36)/50.
d. 0.64 + or - 1.645 underroot(0.64)(0.36)/50.
e. 0.64 + or - 1.96 underroot(0.64)(0.36)/50.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:30, natjojo0512

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Answers: 2

continue

Mathematics, 21.06.2019 19:00, kkatlynn

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

Answers: 1

continue

Mathematics, 21.06.2019 22:10, ava789

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Answers: 3

continue

Mathematics, 22.06.2019 02:50, destineyburger2

1. how do you find p(a and b) if a and b are dependent events for two or more actions, such as selecting two candies and drawing p(green, and then pink)?

Answers: 1

continue

You know the right answer?

Alma is estimating the proportion of students in her school district who, in the past month, read at...