tephanie is trying to figure out the sample size of an experiment. She knows the population SD is 41.5 and the SD of the sample averages is 2.7. What is the sample size of the experiment?

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you​ survey? Assume that you want to be 90​% confident that the sample percentage is within 3.5 percentage points of the true population percentage. Complete parts​ (a) and​ (b) below.

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you​ survey? Assume that you want to be 9595​% confident that the sample percentage is within 2.52.5 percentage points of the true population percentage. Complete parts​ (a) and​ (b) below.

Find an article of your choice which uses proportions, and copy and paste the address of that article in this step. Identify at least one sample proportion within the article (you can list more than one if you like), and state what that sample proportion measures. For example, if you're told that the sample proportion of people in Renton who are taller than 5'11" is 80.7%, and you're also told that the sample size is 57, then you would state the proportion as 46/57 in your response for this part of the assignment. You will probably have to interpret what is being said in the article in order to be able to state specifically what the sample proportion represents. Also, you might not have x or n, you might only have the percentage or a decimal equivalent. Often, the size of the sample is stated somewhere in the article, and it's important to find that value. So, if n is given, please include it in this part of the assignment. If stated in the article, identify whether the sample is a…

doesn't the mean of a sample population equal the true proportion?

You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 180 men, and 75% own cats.You sample 100 women, and 60% own cats.Find the test statistic.

I can't understand why the data is the percentage of surveyed parents.

Explain the relationships among the sample proportion, the number of successes in the sample, and the sample size.

Hi could you fill out the blanks?

A doctor is concerned that a drug treatment causes people to run a fever. She recruited n=50 participants and gave them the drug treatment. She then measured their body temp 12 hours later. She wants to compare the average temp of her sample to the population average body temp of 98.6 to see if the participants temperature is significantly different. Which statistical test should she use?