Mathematics, 25.05.2021 02:30 dontcareanyonemo
The standard deviation of SAT scores for students at a particular Ivy League college is 250 points. Two statistics students, Raina and Luke, want to estimate the average SAT score of students at this college as part of a class project. They want their margin of error to be no more than 26 points.
(a) Raina wants to use a 90% condence interval. How large a sample should she collect?
(b) Luke wants to use a 99% condence interval. Without calculating the actual sample size, determine whether his sample should be larger or smaller than Raina's, and explain your reasoning.
(1) smaller since Luke has a higher level of confidence in his results than Raina
(2) smaller because higher degrees of confidence require smaller margins of error
(3) larger higher degrees of confidence require larger margins of error
(c) Calculate the minimum required sample size for Luke.
Answers: 3
Mathematics, 21.06.2019 19:30
In the geometric progression –3, 12, −48… what term is 3,072?
Answers: 2
Mathematics, 21.06.2019 22:00
Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square
Answers: 1
Mathematics, 21.06.2019 22:50
Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.
Answers: 1
Mathematics, 21.06.2019 23:00
What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)
Answers: 1
The standard deviation of SAT scores for students at a particular Ivy League college is 250 points....
Social Studies, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Chemistry, 11.03.2021 03:10
Chemistry, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10
Arts, 11.03.2021 03:10
Mathematics, 11.03.2021 03:10