Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

askme12345Best ResponseYou've already chosen the best response.0
1. The Aid to Families with Dependent Children (AFDC) program has an overall error rate of 4% in determining eligibility. The state of California uses sampling to monitor its counties to see whether they exceed the 4% error rate, which can result in economic sanctions. In one county, 9 cases out of 150 were found to be in error. (a) Find a 95% confidence interval for the error rate for the county (proportion of all cases in error). (b) In 1982 the California legislature mandated that a 95% confidence interval be used in studying error rate. Based on your answer in part (a), would you conclude that the error rate for the county is above the 4% rate? 2. To estimate the proportion p of passengers who had purchased tickets for more than $400 over a year's time, an airline official obtained a random sample of 75. The number of those purchasing tickets for more than $400 was 45. (a) What is a point estimate for p? (b) Find a 90% confidence interval for p.
 2 years ago

amistre64Best ResponseYou've already chosen the best response.1
ow!! zarkon is good at these
 2 years ago

amistre64Best ResponseYou've already chosen the best response.1
its been to long for me to place it all
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.