Mathematics, 12.02.2020 04:49 kayonapretty14p45995

The 2015 American Time Use survey contains data on how many minutes of sleep per night each of 10,900 survey participants estimated they get. The times follow the Normal distribution with mean 529.9 minutes and standard deviation 135.6 minutes. An SRS of 100 of the participants has a mean time of ¯ x = 514.4 minutes. A second SRS of size 100 has mean ¯ x = 539.3 minutes. After many SRSs, the values of the sample mean ¯ x follow the Normal distribution with mean 529.9 minutes and standard deviation 13.56 minutes. What is the population?
A. The population is 135.6 million respondents to the American Time Use Survey.
B. The population is the 100 participants in the SRS.
C. The population is the 10,900 respondents to the American Time Use Survey.
D. The population is all Americans who sleep through the night.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 14:30

3. solve the given inequality and graph the solution on a number line.

Answers: 3

Answer

Mathematics, 21.06.2019 20:00

Combine like terms to make a simpler expression 3z+z

Answers: 2

Answer

Mathematics, 21.06.2019 22:30

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply

Answers: 2

Answer

Mathematics, 21.06.2019 23:00

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet

Answers: 1

Answer

You know the right answer?

The 2015 American Time Use survey contains data on how many minutes of sleep per night each of 10,90...

Questions

Mathematics, 19.12.2019 18:31

Agroup of students were surveyed to find out if they like building snowmen or skiing as a winter activity. the results of the survey are shown below:...