A survey of 525 homeless persons showed that 168 were not veterans. Construct a 95% confidence interval for the proportion of homeless persons who are not veterans.
A survey of 525 homeless persons showed that 168 were not veterans. Construct a 95% confidence...
In a survey of 2280 adults, 709 say they believe in UFOS. Construct a 95% confidence interval for the population proportion of adults who believe in UFOS. A 95% confidence interval for the population proportion is ( (Round to three decimal places as needed.) ) Interpret your results. Choose the correct answer below O A. With 95% confidence, it can be said that the population proportion of adults who believe in UFOS is between the endpoints of the given confidence...
In a survey of 2330 adults, 700 say they believe in UFOs. Construct a 95 % confidence interval for the population proportion of adults who believe in UFOs. A 95% confidence interval for the population proportion is ( nothing, nothing). (Round to three decimal places as needed.) Interpret your results. Choose the correct answer below. A. With 95% probability, the population proportion of adults who do not believe in UFOs is between the endpoints of the given confidence interval. B....
Using the sample of size 200, construct a 95% confidence interval for the proportion of Youth Survey participants who would describe themselves as being about the right weight (Round to three decimal places.) Sample Proportion = Margin of error Lower limit Upper limit Does your 95% confidence interval based on the sample of size 200 include the true proportion of Youth Survey participants who would describe themselves as being about the right weight? O Yes O No
a. Construct a 95% confidence interval estimate of the
population proportion of adults who had bought something online
b. Construct a 95% confidence interval estimate of the
population proportion of online shoppers who are weekly online
shoppers.
A research center survey of 2,351 adults found that 1,899 had bought something online. Of these online shoppers, 1,203 are weekly online shoppers. Complete parts (a) through (c) below.
A survey of 100 respondents as conducted to study proportion people snoring in their sleep. Approximately 40% people claim that they do. Using this information , construct a 95% confidence interval for the proportion of people that do snore in their sleep.
Use the degrees of confidence and a sample data to construct a 95% confidence interval for the population proportion. A survey of 200 union members in New York reveals that 112 favor the republican candidate for governor.
Use a confidence interval to determine if the proportions are different. 2) A recent survey showed that in a sample of 100 elementary school teachers, 15 were single. In a sample of 180 high school teachers, 36 were single. Is the proportion of high school teachers who were single greater than the proportion of elementary teachers who were single? Use a -0.01.
A random sample of 220 persons showed that 8 of them were colorblind. Give a 99% confidence interval for the proportion of colorblind people in the popoulation
a survey of 400 non fatal accidents showed that 109 involved uninsured drivers. Construct a 99% confidence interval for the proportion of fatal accidents that involved uninsured drivers.
A survey found that out of a random sample of 200 workers 168 said that they were interruped 3 or more times an hour by phone messages, etc find the 90% confidence interval of the pop proportion of workers who are interupted 3 or more times