![alexabdercmur](/avatars/31173.jpg)
alexabdercmur
24.04.2021 •
Mathematics
As bridge building, craftily clever Calpurnia does dazzlingly double-duty dinners, emcee-ing elegant, elegiac, eleemosynary events: for forty-four favorite uffy fat-cats, Georgia'sgolden girl gladly helps heavy hitters initiate inimitable joviality. In Calpurnia's experi-ence the population of all her donations is approximatelyNormally distributed. TonightCalpurnia's 44 fat-cats donate $27,500, with Standard Deviations s= $125.
Required:
a. Estimate the mean donation for Calpurnia's population of fat-cats.
b. To draw any inferences from these data, what must we assume about the population of fat-cat donations, and why? We shall assume this for the remainder of this problem.
c. For Calpurnia's sample of 45 donors, suppose that s = $120.
i. Find a 90% confidence interval for Calpurnia's population mean donation.
ii. Find a 98% confidence interval for Calpurnia's population mean donation.
iii. Compare your answers in c.i. and c.ii.: which interval is wider, and why?
d. Calpurnia believes she can rake in more than $400 per party-goer, on average. What hypotheses should she use to test this? Define in words any parameters.
e. To test these hypotheses, what test-statistic should Calpurnia use?
Solved
Show answers
More tips
- F Food and Cooking How to Properly Collect Mushrooms? A Comprehensive Guide...
- C Computers and Internet 3D Glasses! What is this thing?...
- C Computers and Internet How to insert videos into LiveJournal?...
- C Computers and Internet How Much Does an iPhone Cost in America?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Mathematics
- M Mathematics Expression is equivalent to 6(3n-4) 9n-1018n-2418n-43n-24ty everyone who is helping me I don t under stand how to do this so ya ......
- M Mathematics For each additional slice of pizza that is purchased, by how much does the total cost of lunch increase? $1.50$2.00$2.50$3.00...
- M Mathematics I need help show work ill mark brainliest...
- M Mathematics POW #11 Brad s Volunteers...
- M Mathematics Find the distance between (-3, 8) and (4, 2)....
- M Mathematics james rides his bike for what he believes is 20 miles due west and then 21 miles due north. the distance from his starting point to where he is now is 29 miles...
- M Mathematics Which of the following is an exponential growth? a. f(x) = 25 x 1x/3 b. f(x) = 7 x 0.78x c. f(x) = -0.04x f(x) = 0.5 x 5x/4...
- M Mathematics How do you solve using read,write,and write process...
- M Mathematics A community center is holding a raffle.PersonTickets purchasedTotal price (in dollars) AAA3191 B 5309 C 8 435 Who paid the lowest price per ticket?...
- M Mathematics Can someone please answer? Which theorem is it?...
Ответ: