Mathematics, 21.04.2021 18:50 TimaGarcia
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 5-7 ?
1 second
5 seconds
25 seconds
35 seconds
Answers: 1
Mathematics, 22.06.2019 02:00
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.
Answers: 2
Mathematics, 22.06.2019 05:50
Use the real number line shown below to complete the statement
Answers: 1
The times to pop a regular bag of microwave popcorn without burning it are Normally distributed with...
Mathematics, 02.02.2021 20:10
Physics, 02.02.2021 20:10
Computers and Technology, 02.02.2021 20:10
Chemistry, 02.02.2021 20:10
Mathematics, 02.02.2021 20:10
History, 02.02.2021 20:10
Social Studies, 02.02.2021 20:10
Mathematics, 02.02.2021 20:10
Mathematics, 02.02.2021 20:10
English, 02.02.2021 20:10
Physics, 02.02.2021 20:10
History, 02.02.2021 20:10