Arecent study of 750 internet users in Europe found that 35% ofinternet users were...
A
recent study of 750 internet users in Europe found that 35% of
internet users were women. This data is used to find the 95%
confidence interval of the true proportion of women in Europe who
use the internet. Find the margin of error.
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Arecent study of 750 internet users in Europe found that 35% ofinternet users were...
solve both pls A survey is to be conducted to determine the average driving in miles...
solve both pls
A survey is to be conducted to determine the average driving in miles by MS dents. The investigator wants to know how are the sample should be taken to confidence interval on the true average within 1.5 miles. A similar study on the past found that the population standard deviation was 82 miles Bonus(5 points): A recent study of 750 Internet users in Europe found that 35% of Internet users were women. What is the 96% confidence...
A sample survey of 842 adult Internet users found that 67% look for information on the...
A sample survey of 842 adult Internet users found that 67% look for information on the online collaborative encyclopedia Wikipedia. ( a) Give the standard error SE of p̂, the proportion of all adult Internet users who look for information on Wikipedia. (Round your answer to four decimal places.) SE = (b) Give a 95% large sample confidence interval for the proportion of all adult internet users who look for information on Wikipedia. -0.624 to 0.716 -0.615 to 0.725 -0.638...
A poll conducted in 2013 found that the proportion of of U.S. adult Twitter users who...
A poll conducted in 2013 found that the proportion of of U.S. adult Twitter users who get at least some news on Twitter was 0.52. The standard error for this estimate was 0.024, and a normal distribution may be used to model the sample proportion. 1. Construct a 99% confidence interval for the proportion of U.S. adult Twitter users who got some news on Twitter. Round to four decimal places. to 2. Identify each of the following statements as true...
please help with number 14 manufacturer samples 11 bags of pretzels off the assembly line and...
please help with number 14
manufacturer samples 11 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 15.2 oz. and the sample 0.50 oz., find the 95% confidence interval of the true mea 95% confidence interval of the true mean. X=15.2,0-2,5o, noll 2 A) 15.0<u< 15.4 B) 12.9<x< 17.5 1 74.4 Luz 14.9<u< 15.5 D) 14.1 Su< 16.3 C 15.2 -1. 90 <us 15.a +auG ) > 15.2 -0.30-14.94 14) The winning team's...
A study reported that 43% of Internet users have searched for information about themselves online. The...
A study reported that 43% of Internet users have searched for information about themselves online. The 43% figure was based on a random sample of Internet users. Suppose that the sample size was n = 500. Construct a 90% confidence interval for the proportion of Internet users who have searched online for information about themselves. (Round your answers to three decimal places.) ( , ) Interpret the interval. We are 90% confident that the proportion of all Internet users who...
A study reported that 48% of Internet users have searched for information about themselves online. The...
A study reported that 48% of Internet users have searched for information about themselves online. The 48% figure was based on a random sample of Internet users. Suppose that the sample size was n = 400. Construct a 90% confidence interval for the proportion of Internet users who have searched online for information about themselves. (Round your answers to three decimal places.) ( , ) Interpret the interval. We are 90% confident that the proportion of all Internet users who...
A study reported that 44% of Internet users have searched for information about themselves online. The...
A study reported that 44% of Internet users have searched for information about themselves online. The 44% figure was based on a random sample of Internet users. Suppose that the sample size was n = 300. Construct a 90% confidence interval for the proportion of Internet users who have searched online for information about themselves. (Round your answers to three decimal places.) ( , ) Interpret the interval. We are confident that the proportion of all Internet users who have...
America's young people are heavy Internet users; 87% of Americans ages 12 to 17 are Internet...
America's young people are heavy Internet users; 87% of Americans ages 12 to 17 are Internet users (The Cincinnati Enquirer, February 7, 2006). MySpace was voted the most popular website by 9% in a sample survey of Internet users in this age group. Suppose 1,550 youths participated in the survey. What is the margin of error, and what is the interval estimate of the population proportion for which MySpace is the most popular website? Use a 95% confidence level and...
The Pew Internet and American Life Project reported on the widespread use of the Internet to...
The Pew Internet and American Life Project reported on the widespread use of the Internet to search for information regarding experimental treatments or medicines. From telephone interviews of 1061 adult Internet users, it was found that 195 had searched for information on experimental treatments or medicines in the past year. • We are 96% confident that the true proportion of adult Internet users who had searched for information on experimental treatments or medicines in the past year is between %...
A study of 420 comma 020 cell phone users found that 140 of them developed cancer...
A study of 420 comma 020 cell phone users found that 140 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0414% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 95% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. a....
solve both pls
A survey is to be conducted to determine the average driving in miles by MS dents. The investigator wants to know how are the sample should be taken to confidence interval on the true average within 1.5 miles. A similar study on the past found that the population standard deviation was 82 miles Bonus(5 points): A recent study of 750 Internet users in Europe found that 35% of Internet users were women. What is the 96% confidence...
please help with number 14
manufacturer samples 11 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 15.2 oz. and the sample 0.50 oz., find the 95% confidence interval of the true mea 95% confidence interval of the true mean. X=15.2,0-2,5o, noll 2 A) 15.0<u< 15.4 B) 12.9<x< 17.5 1 74.4 Luz 14.9<u< 15.5 D) 14.1 Su< 16.3 C 15.2 -1. 90 <us 15.a +auG ) > 15.2 -0.30-14.94 14) The winning team's...
The Pew Internet and American Life Project reported on the widespread use of the Internet to search for information regarding experimental treatments or medicines. From telephone interviews of 1061 adult Internet users, it was found that 195 had searched for information on experimental treatments or medicines in the past year. • We are 96% confident that the true proportion of adult Internet users who had searched for information on experimental treatments or medicines in the past year is between %...
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