Mathematics, 09.12.2021 05:00 sdfhghjg
Thirty-two small communities in Connecticut (population near 10,000 each) gave an average of x = 139.0 reported cases of larceny per year. Assume that is known to be 43.3 cases per year.
(a)Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.)
lower limit
upper limit
margin of error
(b)Find a 95% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.)
lower limit
upper limit
margin of error
(c)Find a 99% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.)
lower limit
upper limit
margin of error
(d)Compare the margins of error for parts (a) through (c). As the confidence levels increase, do the margins of error increase?
As the confidence level increases, the margin of error decreases.
As the confidence level increases, the margin of error increases.
As the confidence level increases, the margin of error remains the same.
(e)Compare the lengths of the confidence intervals for parts (a) through (c). As the confidence levels increase, do the confidence intervals increase in length?
As the confidence level increases, the confidence interval remains the same length.
As the confidence level increases, the confidence interval increases in length.
As the confidence level increases, the confidence interval decreases in length.
Answers: 3
Mathematics, 21.06.2019 20:40, alemvp8219
Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?
Answers: 3
Mathematics, 21.06.2019 21:00, edandjill24
Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.
Answers: 1
Mathematics, 22.06.2019 01:00, NNopeNNopeNNope
Bc and bd are opposite rays. all of the following are true except a)a, b,c, d are collinear b)a, b,c, d are coplanar c)bc=bd d)b is between c and d
Answers: 1
Thirty-two small communities in Connecticut (population near 10,000 each) gave an average of x = 139...
History, 30.03.2021 01:00
History, 30.03.2021 01:00
Mathematics, 30.03.2021 01:00
History, 30.03.2021 01:00
Mathematics, 30.03.2021 01:00
Mathematics, 30.03.2021 01:00