Mathematics, 23.04.2020 20:54 rayisaiah3
Survey accuracy A study investigating the relationship between age and annual medical expenses randomly samples 100 individuals in Davis, California. It is hoped that the sample will have a similar mean age as the entire population.
a. If the standard deviation of the ages of all individuals in the city is sigmaequals17, find the probability that the mean age of the individuals sampled is within two years 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 answer this, but if it makes it easier, use a value such as muequals25.)
b. Would the probability be larger, or smaller, if σ = 10? Why?
Answers: 2
Mathematics, 21.06.2019 18:10
If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.
Answers: 1
Mathematics, 21.06.2019 20:10
Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b
Answers: 3
Mathematics, 21.06.2019 22:10
Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.
Answers: 2
Mathematics, 22.06.2019 01:00
Why is causation so much more difficult to prove than correlation?
Answers: 2
Survey accuracy A study investigating the relationship between age and annual medical expenses rando...
Mathematics, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
History, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
Advanced Placement (AP), 15.12.2020 04:50
History, 15.12.2020 04:50
History, 15.12.2020 04:50
History, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
Biology, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50
Mathematics, 15.12.2020 04:50