Mathematics, 07.04.2020 01:33 33865
A study investigating the relationship between age and annual medical expenses randomly samples 400 individuals in a city. It is hoped that the sample will have a similar mean age as the entire population. Complete parts a and b below.
a. If the standard deviation of the ages of all individuals in the city is σ=16,find the probability that the mean age of the individuals sampled is within one year of the mean age for all individuals in the city. (Hint: Find the sampling distribution of the sample mean age and use the central limit theorem. You don't have to know the population mean to answerthis, but if it makes it easier, use a value such as μ=30.)
The probability is
(Round to three decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 16:30
You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?
Answers: 2
Mathematics, 21.06.2019 23:40
Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me
Answers: 1
Mathematics, 22.06.2019 00:30
You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25
Answers: 2
Mathematics, 22.06.2019 05:00
Right triangle lmn has vertices l(7, –3), m(7, –8), and n(10, –8). the triangle is translated on the coordinate plane so the coordinates of l’ are (–1, 8). (x, y) → (x + 6, y – 5) (x, y) → (x – 6, y + 5) (x, y) → (x + 8, y – 11) (x, y) → (x – 8, y + 11)
Answers: 2
A study investigating the relationship between age and annual medical expenses randomly samples 400...
English, 05.12.2021 03:40
Business, 05.12.2021 03:50
English, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50
Business, 05.12.2021 03:50
Mathematics, 05.12.2021 03:50