Mathematics, 18.03.2021 03:40 fredo99

A field tet for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standard deviation were calculated. Based on the results, the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 3% of 69%. Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 12:30

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Answers: 1

Answer

Mathematics, 21.06.2019 14:00

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

Answers: 1

Answer

Mathematics, 21.06.2019 19:10

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

What is the value of f(x) = 2.2 for f(-2)?

Answers: 2

Answer

You know the right answer?

A field tet for a new exam was given to randomly selected seniors. The exams were graded, and the sa...

Questions

Mathematics, 10.09.2020 05:01

How do you solve 7x-5=30?...

Mathematics, 10.09.2020 05:01