![nallwly](/avatars/35784.jpg)
nallwly
05.05.2020 •
Mathematics
A relief fund is set up to collect donations for the families affected by recent storms. A random sample of 400 people shows that 28% of those 200 who were contacted by telephone actually made contributions compared to only 18% of the 200 who received first class mail requests. Which formula calculates the 95% confidence interval for the difference in the proportions of people who make donations if contacted by telephone or first class mail?
Solved
Show answers
More tips
- F Food and Cooking Discover the Health Benefits of Cedar Nuts...
- S Science and Technology Exploring Our Galaxy: How Many Planets are in the Milky Way?...
- S Science and Technology Colliders: How They Work and Why They Matter...
- A Animals and plants Unraveling the Mystery of Loch Ness: What Does the Loch Ness Monster Look Like?...
- L Leisure and Entertainment How Many Seasons are There in the TV Show Interns?...
- S Sport Playing Bowling: Rules and Advice for Novices...
- L Leisure and Entertainment The Best Film of 2010: A Look Back at the Academy Awards...
- S Sport How to Learn Swimming? Simple Tips for Beginners...
- C Computers and Internet What is Web 2.0 and How Does it Work?...
- C Computers and Internet War of Social Media: Which Platform is the Leader?...
Answers on questions: Mathematics
- M Mathematics $31,000 at 1% compounded annually for 6 years...
- M Mathematics You purchase a watch for $845.00. You make a $95.00 down payment and financed the rest for 6 monthly payments of $128.75. Determine the total installment price....
- M Mathematics So Can yall help me i will give yall a brainless ponit. what is 2021 - + 28 (5+987?...
- M Mathematics Solve the equation. -X +8 + 3x =X-6 Ο χ= -18 Ο χ=-14 Ο Χ=2 Ο Χ=4...
- M Mathematics Maria does weightlifting for 30 seconds and then aerobics for 60 seconds. She repeats this 10 times. If she does not take any breaks, how many minutes does she exercise?...
- M Mathematics Spinner A and Spinner B have 3 color choices each: red, yellow and blue. What is the probability of getting a blue and yellow combination from the area model?...
- M Mathematics PLZ PLZ PLZ PLZ PLZ PLZ HELP ME I AM CONFUSED AND DON T KNOW WHAT TO DO!!...
- M Mathematics H = –16+64t + 960 A ball is thrown into the air with an upward velocity of 64 ft/s. Its height, h, after t seconds is given by the function above. When did the ball hit...
- M Mathematics John s guest house is 18 m long, and 15 m wide. What is the length of the diagonal of the house?...
- M Mathematics –6x − 8y = –14 y = –2...
Ответ:
#2 - No relationship.
#3 - Negative