Mathematics, 10.04.2020 21:12, GreenHerbz206
It has been found that times taken by people to complete a particular tax form follow a normal distribution with mean 100 minutes and standard deviation 30 minutes. A random sample of nine people who have completed this tax form was taken.
a) What is the probability that the sample mean time taken is more than two hours?
b) The probability is 0.20 that the sample mean time taken is less than how many minutes?
c) What is the probability that the sample mean time taken is less than 70 minutes?
d) What is the probability that a randomly chosen individual takes less than 70 minutes to complete this
particular tax form?
Answers: 1
Mathematics, 21.06.2019 17:30, davidgarcia522083
Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9
Answers: 3
Mathematics, 21.06.2019 21:30, foreverandalways80
Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter
Answers: 1
Mathematics, 21.06.2019 22:20, keyshawn437
Question 4 of 10 2 points what is the second part of the process of investigating a question using data? a. rephrasing the question o b. describing the data c. collecting the data o d. making an inference submit
Answers: 1
It has been found that times taken by people to complete a particular tax form follow a normal distr...
Advanced Placement (AP), 28.02.2021 05:40
Mathematics, 28.02.2021 05:40
Mathematics, 28.02.2021 05:40