subject
Mathematics, 13.04.2021 01:30 kaylynnstanley22

A random sample of size n 1 equals 31 results in a sample mean of 123.3 and a sample standard deviation of 8.5. An independent sample of size n 2 equals 50 results in a sample mean of 129.8 and sample standard deviation of 7.3. Does this constitute sufficient evidence to conclude that the population means differ at the alpha equals 0.01 level of​ significance?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
Use set builder notation to represent the following set: { -3, -2, -1, 0}
Answers: 1
question
Mathematics, 21.06.2019 19:30
When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41
Answers: 1
question
Mathematics, 21.06.2019 22:00
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
question
Mathematics, 21.06.2019 23:00
Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.
Answers: 1
You know the right answer?
A random sample of size n 1 equals 31 results in a sample mean of 123.3 and a sample standard deviat...
Questions
question
Mathematics, 18.11.2020 20:10