subject
Physics, 24.12.2021 03:30 Hcalhoun21

A house cleaning service claims that it can clean a four-bedroom house in less than 2 hours. A sample of n = 36 houses is taken and the sample mean is found to be 1. 97 hours and the sample standard deviation is found to be 0. 1 hours. Using a 0. 05 level of significance the correct conclusion is.

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 10:00, tlecuyer
Atomic nuclei of almost all elements consist of
Answers: 1
image
Physics, 22.06.2019 12:30, mikurrjurdan
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
image
Physics, 22.06.2019 19:00, Clervoyantyvonne
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 3
image
Physics, 22.06.2019 23:40, redraider4915
Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)
Answers: 1
You know the right answer?
A house cleaning service claims that it can clean a four-bedroom house in less than 2 hours. A sampl...

Questions in other subjects:

Konu
Mathematics, 11.08.2021 20:30