subject
Mathematics, 16.04.2020 02:27 weeblordd

Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater than 2 feet. In population E, 20 percent of the turtles have a shell length greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length greater than 2 feet. Let pˆD represent the sample proportion for D, and let pˆE represent the sample proportion for E.
What is the probability that pˆD−pˆE is greater than 0.1917?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 16:20
Find the slope of a line given the following two points
Answers: 1
question
Mathematics, 21.06.2019 17:00
Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.
Answers: 1
question
Mathematics, 21.06.2019 22:00
Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.
Answers: 2
question
Mathematics, 21.06.2019 22:30
In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%
Answers: 1
You know the right answer?
Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles...
Questions
question
Mathematics, 18.10.2020 15:01
question
Mathematics, 18.10.2020 15:01
question
Mathematics, 18.10.2020 15:01
question
English, 18.10.2020 15:01
question
Computers and Technology, 18.10.2020 15:01
question
English, 18.10.2020 15:01
question
Mathematics, 18.10.2020 15:01
question
History, 18.10.2020 15:01
Questions on the website: 13722363