Compute cis for proportion of all female hispanic drivers

Assignment Help Basic Statistics

Reference no: EM13122149

Like many behaviours, the proportion of drivers who use seat belts varies with factors such as age, sex, ethnicity and local laws. As part of a broader study, investigators observed a random sample of 117 female, Hispanic drivers in Boston; of these, 68 used their seat belts. What is the proportion of seat belt users in this sample? What is the proportion of non-users? Show that calculation of confidence intervals (CI) is legitimate for this sample (i.e. that use of the Normal approximation to the binomial is safe) then calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?

Reference no: EM13122149

Questions Cloud

Investment as trading securities : Goofy reclassified this investment as trading securities in December of 2011 when the market value had risen to $125,000. What effect on 2011 income should be reported by Goofy for the Crazy Co. shares?

Illustrate what are the distinguishing characteristics : Illustrate what are the distinguishing characteristics of the EMTN and explain why it is such a popular form of financing for MNEs?

Natural numbers and divisibility : The natural number 28A9B consists of different numbers and A is not equal to 0. When the number is divided by 9 the remainder is 7 and when it is divided by 5

Illustrate health care delivery component role in providing : Illustrate the health care delivery component's role in providing services, as well as explain how it contributes to or lacks contribution to the overall management of health care resources.

Compute cis for proportion of all female hispanic drivers : Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?

Description of probability- random selection : Description of Probability : Random Selection, Suppose there are two vendors and each provides 50% of the items. The lifetime (in days) of an item from the first vendor is Exp

Proof of infinite primes : There are infinitely many prime numbers p of the form 4n+3. In other words, show that there exist infinitely many positive integers, n, such that the number 4n+1 is prime.

How long it take for partial pressure drop of cylclopropane : If a 2.1 L reaction vessel initially contains 723 torr of cyclopropane at 485 degrees C , how long will it take for the partial pressure of cylclopropane to drop to below 105 torr ?

Loss contingency accrued in a company financial statements : A loss contingency shoulf be accrued in a company's financial statements only if the likelihood that a liability has been incurred is:

User Account

All Pages