Mathematics, 14.04.2021 05:30 superbatman9193
The times to pop a regular bag of microwave popcorn without burning it are Normally distributed with a mean time of 140 seconds and a standard deviation of 20 seconds. The times to pop a mini bag of microwave popcorn without burning it are Normally distributed with a mean time of 90 seconds and a standard deviation of 15 seconds. Suppose two independent random samples, 25 of each, are taken and the mean popping times are calculated. Let R = the popping time of a randomly selected regular-sized bag and M = the popping time of a mini-sized bag. Which of the following best describes the standard deviation of the sampling distribution of x Overbar Subscript Upper R Baseline minus x Overbar Subscript Upper M?
1 second
5 seconds
25 seconds
35 seconds
Answers: 1
Mathematics, 20.06.2019 18:04
Question 1 (50 points) your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph. question 2 (50 points) taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1g(x)=2x2+1
Answers: 1
Mathematics, 21.06.2019 15:00
2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.
Answers: 2
Mathematics, 21.06.2019 16:30
A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.
Answers: 1
The times to pop a regular bag of microwave popcorn without burning it are Normally distributed with...
English, 09.03.2021 20:20
Spanish, 09.03.2021 20:20
History, 09.03.2021 20:20
English, 09.03.2021 20:20
Mathematics, 09.03.2021 20:20
Mathematics, 09.03.2021 20:20
Mathematics, 09.03.2021 20:20
Mathematics, 09.03.2021 20:20