Mathematics, 01.03.2021 16:30 torresnoemi899
Suppose the duration of your phone calls follows a distribution with mean of 2.8 minutes and standard deviation of 2.1 minutes. From a random sample of n = 45 calls, your parents computed a sample mean of 3.4 minutes and a sample standard deviation of 2.9 minutes. a. What are its mean and standard deviation? b. What are the mean and standard deviation of the data distribution? c. Find the mean and standard deviation of the sampling distribution of the sample mean. d. What is the probability to obtain a sample mean larger than 3.5 minutes?
Answers: 1
Mathematics, 21.06.2019 15:50
Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?
Answers: 1
Mathematics, 21.06.2019 16:00
You use math in day-to-day routines when grocery shopping, going to the bank or mall, and while cooking. how do you imagine you will use math in your healthcare career?
Answers: 1
Mathematics, 21.06.2019 18:30
Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much
Answers: 1
Mathematics, 21.06.2019 23:40
Which set of side lengths form a right side? a) 3ft,6ft,5ft b)50 in,48in,14in c)53m,48m,24m d)8cm,17cm,14cm
Answers: 2
Suppose the duration of your phone calls follows a distribution with mean of 2.8 minutes and standar...
History, 05.12.2020 05:20
Geography, 05.12.2020 05:20
History, 05.12.2020 05:20
Mathematics, 05.12.2020 05:20
Mathematics, 05.12.2020 05:20
Mathematics, 05.12.2020 05:20
Mathematics, 05.12.2020 05:20
History, 05.12.2020 05:20
Mathematics, 05.12.2020 05:20
Physics, 05.12.2020 05:20