3. A sample of 500 applications included 300 from women. Find the 99% confidence interval for the true proportion of women who applied.

From a lake, an unknown proportion of fish have been tagged.  You collect a sample of 100 fish taken from a lake, 57 fish in your sample are tagged. Based on this, construct a 90% confidence interval for the percentage of tagged fish in the lake.

The manager at Bell’s Gym wants to know the proportion of members who use the Cardio Machines. A sample of 260 members showed that 40 of them use cardio machines. Calculate a 97% confidence interval for the proportion of members who use the cardio machines.

4. A recent survey of 349 people ages 18 to 29 found that 86% of them own a smartphone. Find the 99% confidence interval of the population proportion.

Out of 100 people sampled, 54 had kids. Based on this, construct a 90 % confidence interval for the true population proportion of people with kids.

In a sample of 480 adults, 384 had children. Construct a 99% confidence interval for the true population proportion of adults with children. Give your answers as decimals, to three places

26. You are trying to figure out if there is interest in a new restaurant opening in town. You speak to 150 random people, and discover that 60 of them would visit the new restaurant. Find a 95% confidence interval for the proportion of people that would visit the new restaurant.

Out of 400 people sampled, 76 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three places

The ability to find a job after graduation is very important to GSU students as it is to the students at most colleges and universities. Suppose we take a poll (random sample) of 3878 students classified as Juniors and find that 3241 of them believe that they will find a job immediately after graduation. Find the 95% confidence interval for the proportion of GSU Juniors who believe that they will, immediately, be employed after graduation. Use Z = 1.96. Use the unrounded values in Excel to find the answers to #2, #3 and #4. 1. Find the sample proportion of GSU Juniors who believe that they will, immediately, be graduation. 2. The standard error for sample proportion has a value of 3. The margin of error has a value of --

A Gallup poll of 1487 adults showed that 43% of the respondents have Facebook pages.  Construct a 95% confidence interval for the proportion of adults who have a Facebook page.