subject
Mathematics, 06.06.2021 14:00 SKYBLUE1015

PLEASE HELP! A 95% confidence interval is found to be (28, 32). The sample standard deviation is 7, and the sample size is 49. If you wanted a smaller interval, what could you do? A. Decrease the sample size to 36. B. Increase the standard deviation to 10. C. Increase the confidence level to 99.7%. O D. Increase the sample size to 64. SUBMIT​


PLEASE HELP!

A 95% confidence interval is found to be (28, 32). The sample standard deviation is

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 22:00
Need showing work for this problem 56.25 Ă—25.80
Answers: 1
question
Mathematics, 21.06.2019 22:00
The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2
Answers: 1
question
Mathematics, 22.06.2019 04:30
You have z baseball cards. christopher has 12 fewer baseball cards than you do. which expression correctly shows how many baseball cards christopher has?
Answers: 2
question
Mathematics, 22.06.2019 05:00
What is the answer key for unit 7 polygon and quadrilaterals homework 6 trapezoids
Answers: 2
You know the right answer?
PLEASE HELP! A 95% confidence interval is found to be (28, 32). The sample standard deviation is 7,...
Questions
question
Chemistry, 23.09.2019 02:20